Climate Explained: What the World Was Like the Last Time Carbon Dioxide Levels Were at 400ppm
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Climate
Marco Bottigelli / Moment / Getty Images
By James Shulmeister
Climate Explained is a collaboration between The Conversation, Stuff and the New Zealand Science Media Centre to answer your questions about climate change.
If you have a question you'd like an expert to answer, please send it to climate.change@stuff.co.nz
What was the climate and sea level like at times in Earth’s history when carbon dioxide in the atmosphere was at 400ppm?
<p>The last time global carbon dioxide levels were consistently at or above 400 parts per million (ppm) was around <a href="https://www.nature.com/articles/nature14145" target="_blank">four million years ago</a> during a geological period known as the <a href="http://www.geologypage.com/2014/05/pliocene-epoch.html" target="_blank">Pliocene Era</a> (between 5.3 million and 2.6 million years ago). The world was about 3℃ warmer and sea levels were higher than today.</p><p>We know how much carbon dioxide the atmosphere contained in the past by studying ice cores from Greenland and Antarctica. As compacted snow gradually changes to ice, it traps air in bubbles that contain <a href="https://www.cambridge.org/core/journals/annals-of-glaciology/article/enclosure-of-air-during-metamorphosis-of-dry-firn-to-ice/09D9C60A8DA412D16645E6E6ABC1892F" target="_blank">samples of the atmosphere at the time</a>. We can sample ice cores to reconstruct past concentrations of carbon dioxide, but this record only takes us back about a million years.</p><p>Beyond a million years, we don't have any direct measurements of the composition of ancient atmospheres, but we can use several methods to estimate past levels of carbon dioxide. One method uses the relationship between plant pores, known as stomata, that regulate gas exchange in and out of the plant. The density of these stomata is <a href="https://journals.sagepub.com/doi/abs/10.1177/095968369200200109" target="_blank">related to atmospheric carbon dioxide</a>, and fossil plants are a good indicator of concentrations in the past.</p><p>Another technique is to examine sediment cores from the ocean floor. The sediments build up year after year as the bodies and shells of dead plankton and other organisms rain down on the seafloor. We can use isotopes (chemically identical atoms that differ only in atomic weight) of boron taken from the shells of the dead plankton to reconstruct changes in the acidity of seawater. From this we can work out the level of carbon dioxide in the ocean.</p><p>The data from four-million-year-old sediments suggest that <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2010PA002055" target="_blank">carbon dioxide was at 400ppm back then</a>.</p>Sea Levels and Changes in Antarctica
<p>During colder periods in Earth's history, ice caps and glaciers grow and sea levels drop. In the recent geological past, during the most recent ice age about 20,000 years ago, sea levels were at least <a href="https://science.sciencemag.org/content/292/5517/679.abstract" target="_blank">120 meters lower</a> than they are today.</p><p><span></span>Sea-level changes are calculated from changes in isotopes of oxygen in the shells of marine organisms. For the Pliocene Era, <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2004PA001071" target="_blank">research</a> shows the sea-level change between cooler and warmer periods was around 30-40 meters and sea level was higher than today. Also during the Pliocene, we know the West Antarctic Ice Sheet was <a href="https://www.nature.com/articles/nature07867" target="_blank">significantly smaller</a> and global average temperatures were about 3℃ warmer than today. Summer temperatures in high northern latitudes were up to 14℃ warmer.</p><p>This may seem like a lot but modern observations show strong <a href="https://journals.ametsoc.org/jcli/article/23/14/3888/32547" target="_blank">polar amplification</a> of warming: a 1℃ increase at the equator may raise temperatures at the poles by 6-7℃. It is one of the reasons why Arctic sea ice is disappearing.</p>Impacts in New Zealand and Australia
<p>In the Australian region, there was no Great Barrier Reef, but there may have been <a href="https://link.springer.com/content/pdf/10.1007/BF02537376.pdf" target="_blank">smaller reefs along the northeast coast of Australia</a>. For New Zealand, the partial melting of the West Antarctic Ice Sheet is probably the most critical point.</p><p>One of the key features of New Zealand's current climate is that Antarctica is cut off from global circulation during the winter because of the big <a href="https://www.tandfonline.com/doi/abs/10.3402/tellusa.v54i5.12161" target="_blank">temperature contrast</a> between Antarctica and the Southern Ocean. When it comes back into circulation in springtime, New Zealand gets strong storms. Stormier winters and significantly warmer summers were likely in the mid-Pliocene because of a weaker polar vortex and a warmer Antarctica.</p><p>It will take more than a few years or decades of carbon dioxide concentrations at 400ppm to trigger a significant shrinking of the West Antarctic Ice Sheet. But recent studies show that <a href="http://nora.nerc.ac.uk/id/eprint/521027/" target="_blank">West Antarctica is already melting</a>.</p><p>Sea-level rise from a partial melting of West Antarctica could easily exceed a meter or more by 2100. In fact, if the whole of the West Antarctic melted it could <a href="http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.695.7239&rep=rep1&type=pdf" target="_blank">raise sea levels by about 3.5 meters</a>. Even smaller increases raise the risk of <a href="https://www.pce.parliament.nz/publications/preparing-new-zealand-for-rising-seas-certainty-and-uncertainty" target="_blank">flooding in low-lying cities</a> including Auckland, Christchurch and Wellington.</p>From Your Site Articles
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Luxy Images / Getty Images
By Jo Harper
Investment in U.S. offshore wind projects are set to hit $78 billion (€69 billion) this decade, in contrast with an estimated $82 billion for U.S. offshore oil and gasoline projects, Wood Mackenzie data shows. This would be a remarkable feat only four years after the first offshore wind plant — the 30 megawatt (MW) Block Island Wind Farm off the coast of Rhode Island — started operating in U.S. waters.
<p>According to the Department of Energy (DOE), there are 28 US offshore wind projects in the planning stage, with the biggest clusters along the East Coast, from Massachusetts to Virginia. There are also 15 active commercial leases for offshore wind development in the U.S. and if they are fully built, there is the potential to support approximately 25 GW of offshore wind capacity.<span></span></p>
<p><em>Reposted with permission from <a href="https://www.dw.com/en/offshore-us-wind-power-blown-on-course/a-54121338" target="_blank">Deutsche Welle</a>.<a href="https://www.ecowatch.com/r/entryeditor/2646394500#/" target="_self"></a></em><em></em></p>
<p>Wind energy, both onshore and offshore, is now the US's top choice for new power, with 39% of new utility-scale power sector additions at 107 GW — enough to power 32 million homes. It is also the largest renewable energy source in the country, supplying over 7% of the nation's electricity.</p><p>The domestic offshore wind market is smaller than the onshore sector, where capacity is now over 100 GW, but growing. "The shift of investment towards offshore wind in the US is due to a decreasing amount of leasable space on land because an increasing number of landowners and communities are objecting to local siting," says Annie Hawkins, Executive Director, Responsible Offshore Development Alliance (RODA).</p><p>"From an environmental perspective, there is a limited amount of space that can reasonably be developed without significant impacts to ocean ecosystems and the existing ocean resource economy," Hawkins adds.</p><p><a href="https://www.dw.com/en/has-the-wind-been-taken-from-the-sails-of-europes-renewable-future/a-50886866" target="_blank">Europe has long been the global leader in offshore wind generation</a>, with the U.S. focused on developing land-based wind facilities. According to industry body WindEurope, overall offshore capacity for European nations is 22 GW, with 4,000 offshore wind turbines erected in the waters of 11 countries, with a combined power generation capacity of 15.8 GW, enough to supply around 15 mid-size cities.</p>
Corporates Shift
<p>Helping to drive offshore growth, U.S. corporate buyers <a href="https://www.dw.com/en/cities-leading-the-transition-to-renewables/a-42850621" target="_blank">are increasingly relying on wind energy to power their businesses</a>. Walmart and AT&T are the two top corporate wind buyers, while 14 newcomers entered the wind market in 2019, including Estée Lauder and McDonald's.</p><p>"Oil and gas companies have jumped into the U.S. offshore wind market, where they can transfer expertise in offshore fossil fuel development to clean energy investments," says Max Cohen, principal analyst, Americas Power & Renewable research at Wood Mackenzie. Many international oil and gas companies have already recognized this huge potential and entered the US offshore wind market, including Orsted, Equinor and Shell.</p><p>"Given the recent tumult in oil prices, fossil fuel companies may more and more be looking to diversify their portfolios, particularly with assets that are contracted or offer returns uncorrelated with oil and gas," Cohen says. "Offshore wind is an area where they may have a comparative advantage, and they can then leverage the experience with that technology to make the leap to onshore wind, solar, and other renewable technologies," he says.</p>East Coast leads the way
<p>"There is enormous opportunity, especially off the East Coast, for wind. I am very bullish," said former Interior Secretary Ryan Zinke. "Market excitement is moving towards offshore wind. I haven't seen this kind of enthusiasm from industry since the Bakken shale boom," he said.</p><p>Offshore wind initiatives require excessive upfront spending: a 250 MW venture costs about $1 billion, based on International Energy Agency data, but as costs fall the tipping point after which costs fall faster gets nearer</p><p>"The opportunity has been created by Northeastern states seeing the large price declines for offshore wind in Europe," says Cohen. Onshore wind is historically the lowest cost renewable resource, but is at its most expensive in the Northeast, he adds. "But costs are falling slower than for other technologies," he says.</p><p><a href="https://www.dw.com/en/german-firms-welcome-says-new-jersey-governor/a-45961888" target="_blank">In New England and New York the intense "Not-In-My-Backyard" culture</a> (NIMBYism) also makes offshore wind potentially easier to build, Cohen adds. States along the East Coast are aiming to develop over 28 GW of offshore capacity by 2035, with 16 GW of new targets announced in 2019 alone. To help meet these targets, states and utilities selected 4,404 MW of offshore wind capacity through state-issued solicitations in 2019.</p><p>Offshore wind has also benefited from targets set by east-coast states for electrical energy. New York state aims to have 9,000 MW of capability by 2035. New Jersey has dedicated to have 7,500 MW, while Virginia's governor in April signed the 'Clean Economy Act' which requires at the least 5,200 MW of offshore wind by 2034. Massachusetts is committed to purchasing 1,600MW of offshore wind by 2027.</p><p>"The US has a vast offshore wind energy resource with a technical potential of more than 2,000 gigawatts (GW), or nearly double the nation's current electricity use," says Samuel Brock of the American Wind Energy Association (AWEA).</p>
Jobs and Coastal Revitalization
<p>U.S. wind energy now supports 120,000 US jobs and 530 domestic factories. A study by the University of Delaware predicted that the supply chain needed to build offshore turbines to feed power to seven East Coast states by 2030 would generate nearly $70 billion in economic activity and at least 40,000 full-time jobs. An American Wind Energy Association's (AWEA's) March 2020 report estimated that developing 30,000 MW of offshore wind along the East Coast could support up to 83,000 jobs and $25 billion in annual economic output by 2030.</p><p>Having said that, not all of the jobs are American jobs. The offshore wind developers with commercial leases in the US are all foreign companies. There is growing interest from the shipbuilding sector in the Gulf of Mexico in partnering with offshore wind companies to provide services. As a result, some of the US oil trade associations have submitted comments supporting certain aspects of offshore wind. "However, it is unclear to what extent offshore wind developers plan to use US vessels and crew, and the existing projects did not incorporate US vessels or labor at all," Hawkins says.</p>From Your Site Articles
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EcoWatch Daily Newsletter
By Michael Svoboda
The enduring pandemic will make conventional forms of travel difficult if not impossible this summer. As a result, many will consider virtual alternatives for their vacations, including one of the oldest forms of virtual reality – books.
<p>Two kinds of books meet this challenge while telling stories about climate change. The first burrows deep into a particular place, noting changes over time as human impacts, including climate change, have intensified. The second tracks a particular effect of climate change – longer droughts, melting ice sheets, rising sea levels, or raging wildfires – across different communities and landscapes.</p>
<p>Both kinds of books can be found in this month's bookshelf. And for those who hope to do some of their "reading" while on the road, socially distanced in their vehicles, each of this month's entries includes a link to a streamable audio interview with the author.</p><p>As always, the descriptions of the titles are drawn from copy provided by the publishers. When two dates of publication are provided, the second is for the release of the paperback edition.</p><p>Safe travels!</p><p><em>Editor's Note: Yale Climate Connections thanks Scott Smallwood, senior communications manager for <a target="_blank" href="https://www.southernenvironment.org/">Southern Environmental Law Center</a>, for suggesting this theme. Three of the online interviews linked to below were recorded for <a target="_blank" href="https://brokengroundpodcast.org/">Broken Ground</a>, the podcast produced by Southern Environmental Law Center. A fourth Broken Ground interview, with Dr. Robert Bullard, considered the founder of the environmental justice movement, can be streamed <a target="_blank" href="https://www.buzzsprout.com/270210/3620881-dr-robert-bullard-environmental-justice-is-equal-justice">here</a>.</em></p>
<p><strong>1. <a target="_blank" href="https://milkweed.org/book/the-home-place">The Home Place: Memoirs of a Colored Man's Love Affair with Nature</a>, by Drew Lanham (Milkweed 2016/2017, 240 pages, $16.00 paperback) / An interview with author can be streamed <a target="_blank" href="https://www.buzzsprout.com/270210/3433171-drew-lanham-call-of-the-rural-south">here</a>.</strong></p><p>From fertile soils of love, land, identity, family, and race emerges a big-hearted, unforgettable memoir by ornithologist J. Drew Lanham. Dating back to slavery, Edgefield County, South Carolina has been home to generations of Lanhams. In The Home Place, readers meet these extraordinary people, including Drew himself, who over the course of the 1970s falls in love with the natural world around him. As his passion takes flight, however, he begins to ask what it means to be "the rare bird, the oddity." By turns angry, funny, elegiac, and heartbreaking, The Home Place is a meditation on nature and belonging, at once a deeply moving memoir and riveting exploration of the contradictions of black identity in the South – and in America today.</p>
<p><strong>2. <a target="_blank" href="https://milkweed.org/book/late-migrations">Late Migrations: A Natural History of Love and Loss</a>, by Margaret Renkl (Milkweed Editions 2019, 248 pages, $24.00) / An interview with the author can be streamed <a target="_blank" href="https://www.buzzsprout.com/270210/3829103-margaret-renkl-backyard-environmentalism">here</a>.</strong></p><p>Growing up in Alabama, New York Times opinion writer Margaret Renkl was a devoted reader, an explorer of riverbeds and red-dirt roads, and a fiercely loved daughter. Here, in brief essays, she traces a tender and honest portrait of her complicated parents and of the bittersweet moments that accompany a child's transition to caregiver. Ringing with rapture and heartache, these essays convey the dignity of bluebirds and rat snakes, monarch butterflies and native bees. Renkl suggests that there is astonishment to be found in common things: in what seems ordinary, in what we all share. Gorgeously illustrated by the author's brother, Billy Renkl, Late Migrations vividly portrays the cycles of joy and grief that inscribe human lives within the natural world.</p>
<p><strong>3. <a target="_blank" href="https://www.harpercollins.com/9780062661401/chesapeake-requiem/">Chesapeake Requiem: A Year with the Watermen of Vanishing Tangier Island</a>, by Earl Swift (Dey Street Books/Harper Collins 2018/2020, 448 pages, $17.99) / An interview with the author can be streamed <a target="_blank" href="https://www.buzzsprout.com/270210/4004636-earl-swift-watching-waters-rise">here</a>.</strong></p><p>Tangier Island, Virginia, is a community unique on the American landscape. Mapped by John Smith in 1608, settled during the American Revolution, the tiny sliver of mud is home to 470 hardy people who live an isolated and challenging existence, with one foot in the 21st century and another in times long passed. But Tangier is disappearing. The very water that has long sustained it is erasing the island day by day, wave by wave; its shoreline retreats by fifteen feet a year. As the graves of their forebears are being sprung open by encroaching tides, the conservative and deeply religious Tangiermen ponder the end times. Chesapeake Requiem is an intimate look at Tangier by an acclaimed journalist who spent much of the past two years living among its people, crabbing and oystering with its watermen, and observing its odd ways.</p>
<p><strong>4. <a target="_blank" href="https://milkweed.org/book/rising">Rising: Dispatches from the New American Shore</a>, by Elizabeth Rush (Milkweed Editions 2018/2019, 328 pages, $16.00 paperback) / An interview with the author can be streamed <a target="_blank" href="https://www.wbur.org/radioboston/2018/11/27/rising-new-american-shore">here</a>.</strong></p><p>Rising seas are transforming the coastline of the United States in irrevocable ways. In Rising, Elizabeth Rush guides readers through some of the places where this change has been most dramatic. For many of the plants, animals, and humans in these places, the options are stark: retreat or perish in place. Weaving firsthand testimonials from those facing this choice – a Staten Islander who lost her father during Sandy, the remaining holdouts of a Native American community on a drowning Isle de Jean Charles, a neighborhood in Pensacola settled by escaped slaves hundreds of years ago – with profiles of wildlife biologists, activists, and other members of these vulnerable communities, Rising privileges the voices of those often kept at the margins.</p>
<p><strong>5. <a target="_blank" href="https://www.counterpointpress.com/dd-product/trees-in-trouble/">Trees in Trouble: Wildfires, Infestations, and Climate Change</a>, by Daniel Mathews (Counterpoint Press 2020, 304 pages, $26.00) / An interview with the author can be streamed <a target="_blank" href="https://oldfirehousebooksblog.wordpress.com/2020/04/15/author-interview-dan-mathews/">here</a>.</strong></p><p>Climate change manifests in many ways across North America, but few as dramatic as the attacks on our western pine forests. In Trees in Trouble, Daniel Mathews tells the urgent story of this loss, accompanying burn crews and forest ecologists as they study the myriad risk factors and refine techniques for saving this important, limited resource. Scrupulously researched, Trees in Trouble not only explores the devastating ripple effects of climate change, but also introduces us to the people devoting their lives to saving our forests. Mathews also offers hope: a new approach to managing western pine forests is underway. Trees in Trouble explores how we might succeed in sustaining our forests through the challenging transition to a new environment.</p>
<p><strong>6. <a target="_blank" href="https://us.macmillan.com/books/9780374280062">Erosion: Essays of Undoing</a>, by Terry Tempest Williams (Farrar, Strauss, Giroux 2019, 336 pages, $27.00) / An interview with the author can be streamed <a target="_blank" href="https://radiowest.kuer.org/post/terry-tempest-williams-erosion">here</a>.</strong></p><p>Terry Tempest Williams's fierce and spirited essays are a howl in the desert. She asks: "How do we find the strength to not look away from all that is breaking our hearts?" Here, Williams bravely and brilliantly explores the many forms of erosion we face: of democracy, science, compassion, and trust. She examines the cultural and environmental implications of the gutting of Bear Ears National Monument; of the undermining of the Endangered Species Act; of the relentless press by the fossil fuel industry that has led to "oil rigs light[ing] up the horizon." And she testifies that the climate crisis is not an abstraction, offering as evidence the drought outside her door. Erosion is a book for this moment, political and spiritual at once. Williams reminds us that beauty is its own form of resistance, and that water can crack stone.</p>
<p><strong>7. <a target="_blank" href="https://www.nyrb.com/products/wilding?variant=13867544150068">Wilding: Returning Nature to Our Farm</a>, by Isabella Tree (New York Review Books 2019, 392 pages, $19.95 paperback) / An interview with the author can be streamed <a target="_blank" href="https://www.writersvoice.net/2020/02/writers-voice-isabella-tree-wilding-jeet-heer/">here</a>.</strong></p><p>For years Isabella Tree and her husband, Charlie Burrell, farmed Knepp Castle Estate and struggled to turn a profit. By 2000, with the farm facing bankruptcy, they decided to try something radical. They would restore estate's 3,500 acres to the wild. Using herds of free-roaming animals to mimic the actions of the megafauna of the past, they hoped to bring nature back to their depleted land. In the face of considerable opposition the couple persisted with their experiment and soon witnessed an extraordinary change. New life flooded into Knepp, now a breeding hotspot for rare and threatened species. At a time of looming environmental disaster, Wilding is an inspiring story of a farm, a couple, and a community transformed. Isabella Tree's book brings together science, natural history, a fair bit of drama, and – ultimately – hope.</p>
<p><strong>8. <a target="_blank" href="https://www.nyrb.com/products/wilding?variant=13867544150068">Wilding: Returning Nature to Our Farm</a>, by Isabella Tree (New York Review Books 2019, 392 pages, $19.95 paperback) / An interview with the author can be streamed <a target="_blank" href="https://www.writersvoice.net/2020/02/writers-voice-isabella-tree-wilding-jeet-heer/">here</a>.</strong></p><p>For years Isabella Tree and her husband, Charlie Burrell, farmed Knepp Castle Estate and struggled to turn a profit. By 2000, with the farm facing bankruptcy, they decided to try something radical. They would restore estate's 3,500 acres to the wild. Using herds of free-roaming animals to mimic the actions of the megafauna of the past, they hoped to bring nature back to their depleted land. In the face of considerable opposition the couple persisted with their experiment and soon witnessed an extraordinary change. New life flooded into Knepp, now a breeding hotspot for rare and threatened species. At a time of looming environmental disaster, Wilding is an inspiring story of a farm, a couple, and a community transformed. Isabella Tree's book brings together science, natural history, a fair bit of drama, and – ultimately – hope.</p>
<p><strong>9. <a target="_blank" href="https://www.penguinrandomhouse.com/books/103569/horizon-by-barry-lopez/">Horizon</a>, by Barry Lopez (Penguin Random House 2019/2020, 592 pages, $16.99 paperback) / An interview with the author can be streamed <a target="_blank" href="https://www.opb.org/radio/programs/thinkoutloud/segment/rebroadcast-barry-lopez-on-horizon/">here</a>.</strong></p><p>From pole to pole and across decades of lived experience, National Book Award-winning author Barry Lopez delivers his most far-ranging, yet personal, work to date. Horizon moves indelibly, immersively, from Western Oregon to the High Arctic; from the Galápagos to the Kenyan desert; from Botany Bay in Australia to the ice shelves of Antarctica. Along the way, Lopez probes the long history of humanity's thirst for exploration, including prehistoric peoples, 16th & 17th century explorers, 17th and 18th century colonialist, and today's ecotourists in the tropics. And always, throughout his journeys to some of the hottest, coldest, and most desolate places on the globe, Lopez searches for meaning and purpose in a broken world.</p>
<p><strong>10. <a target="_blank" href="https://www.penguinrandomhouse.com/books/543135/disappointment-river-by-brian-castner/">Disappointment River: Finding and Losing the Northwest Passage</a>, by Brian Castner (Penguin Random House 2018/2019, 368 pages, $16.95 paperback) / An interview with the author can be streamed <a target="_blank" href="https://www.youtube.com/watch?v=OhHejIQfx8s">here</a>.</strong></p><p>Fourteen years before Lewis and Clark, Alexander Mackenzie set off to cross the continent to find a trade route to the riches of the East. What he found was a river that he named "Disappointment." In this book, Brian Castner retraces Mackenzie's travels, taking readers to a world rarely glimpsed in the media, a world of tar sands, thawing permafrost, remote indigenous villages and, at the end, a wide open Arctic Ocean that could become a far-northern Mississippi of barges, pipelines and oil money. Disappointment River transports readers back to the heroic age of North American exploration and places them in a still rugged but increasingly fragile Arctic wilderness in the process of profound alteration by the dual forces of globalization and climate change.</p>
<p><strong>11. <a target="_blank" href="https://thenewpress.com/books/end-of-ice">The End of Ice: Bearing Witness and Finding Meaning in the Path of Climate Disruption</a>, by Dahr Jamail (The New Press 2019/2020, 288 pages, $17.99 paperback) / An interview with the author can be streamed <a target="_blank" href="https://ralphnaderradiohour.com/the-end-of-ice/">here</a>.</strong></p><p>In The End of Ice, we follow acclaimed journalist Dahr Jamail as he scales Denali, the highest peak in North America, dives in the warm crystal waters of the Pacific only to find ghostly coral reefs, and explores the tundra of St. Paul Island where he meets the last subsistence seal hunters of the Bering Sea and witnesses its melting glaciers. Accompanied by climate scientists and people whose families have fished, farmed, and lived in the areas he visits for centuries, Jamail begins to accept the fact that Earth, most likely, is in a hospice situation. Like no other book, The End of Ice offers a firsthand chronicle of the catastrophic reality of our situation and the incalculable necessity of relishing this vulnerable, fragile planet while we still can.</p>
<p><strong>12. <a target="_blank" href="https://us.macmillan.com/books/9780374718992">Footprints: In Search of Future Fossils</a>, by David Farrier (Farrar, Straus & Giroux 2020, 307 pages, $28.00) / An interview with the author can be streamed <a target="_blank" href="https://lithub.com/rekindled-david-farrier-in-conversation-with-stephen-sparks/">here</a>.</strong></p><p>Modern civilization has created objects and landscapes with the potential to endure through deep time, whether it is plastic polluting the oceans or nuclear waste sealed within the earth or the 30 million miles of roads spanning the planet. Our carbon could linger in the atmosphere for 100K years, and the remains of our cities will still exist millions of years from now as a layer in the rock. Traveling from the Baltic Sea to the Great Barrier Reef, and from an ice-core laboratory in Tasmania to Shanghai, Farrier describes a world that is changing rapidly, with consequences beyond the scope of human understanding. As much a message of hope as warning, Footprints will not only alter how you think about the future; it will change how you see the world today.</p>
<p class=""><em>Reposted with permission from Yale Climate Connections.</em><em></em></p>
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The Firefly Watch project is among the options for aspiring citizen scientists to join. Mike Lewinski / Wikimedia Commons / CC by 2.0
By Tiffany Means
Summer and fall are great seasons to enjoy the outdoors. But if you're already spending extra time outside because of the COVID-19 pandemic, you may be out of ideas on how to make fresh-air activities feel special. Here are a few suggestions to keep both adults and children entertained and educated in the months ahead, many of which can be done from the comfort of one's home or backyard.
<p><a href="https://www.cocorahs.org/" target="_blank">The Community Collaborative Rain, Hail, and Snow Network</a> (CoCoRaHS)</p><p><em>Open to U.S. and Canada residents</em></p><p>CoCoRaHS invites those with a penchant for precipitation to join its grassroots observation network. By observing, recording, and reporting daily accumulations of rain, snow, and hail in their own backyards, volunteers help fill in "holes" in the official network of precipitation gage data. Over time, these local observations will serve as a record of local climate. And climatologists will use this data to help put extreme precipitation events into historical context and to identify precipitation patterns.</p><p><a href="https://www.massaudubon.org/get-involved/citizen-science/firefly-watch" target="_blank">Firefly Watch</a></p><p><em>Open to U.S. and Canada residents</em></p><p>The Firefly Watch project seeks to answer the question of whether fireflies are disappearing from our summer evenings. Firefly enthusiasts interested in participating are asked to devote a minimum of 10 minutes weekly to observing firefly activity in their backyards or at other grassy locations. Sightings (or lack thereof) are then reported in an online database, along with basic weather conditions. In time, researchers hope the data gathered may help highlight the extent to which climate change has harmed fireflies, whether through loss of habitat or earlier peak appearance.</p>
<p><a href="https://www.zooniverse.org/projects/penguintom79/penguin-watch" target="_blank">Penguin Watch</a></p><p><em>Open to residents worldwide</em></p><p>The Penguin Watch project aims to better understand the environmental threats responsible for the decline in penguin colonies. Volunteers will view short videos and image stills of Adélie, king, and other penguins captured by cameras around the Southern Ocean and Antarctic Peninsula, then count the number of visible adult penguins, chicks, and eggs. In summer 2020, the project is transitioning from monitoring penguin breeding patterns to monitoring foraging behavior.</p><p><a href="https://monarchwatch.org/calendar/" target="_blank">Monarch Watch</a></p><p><em>Open to U.S. residents</em></p><p>A nonprofit conservation and research program based at the University of Kansas, Monarch Watch depends on monarch butterfly and entomology enthusiasts to help investigate the decade-long decline in monarch butterfly numbers. By tracking counts of adult monarch butterflies and the timing of their north-south migrations, volunteers help researchers better predict the fall migration and overwintering population size – two characteristics that are influenced by weather and climate.</p>
<p><a href="http://amoywg.org/research-and-monitoring/" target="_blank">Re-sighting oystercatchers</a><br><em>Open to residents and tourists of the Atlantic and Gulf coasts</em></p><p>Barrier island beachgoers from Maine to Mexico can help monitor American oystercatcher populations by reporting "banded" birds to the American Oystercatcher Working Group. Upon spotting a flock of oystercatchers during the breeding, nesting, or migration seasons, volunteers are asked to note and report (or better yet, photograph) the color, code, and positioning of bracelets on the shorebirds' legs. Re-sighting assists scientists in researching environmental threats, such as sea-level rise, on the migration habits and feeding or nesting resources of these orange-beaked shorebirds, which are a species of "special concern" in some states.</p><p><a href="https://www.outdoors.org/conservation/climate-energy/citizen-science" target="_blank">Mountain Watch</a><br><em>Open to New Hampshire and Maine residents and tourists</em></p><p><span></span>The Appalachian Mountain Club encourages hikers to help scientists study climate change and its effects on the flowering and fruiting times of Appalachian flora through the Mountain Watch program. The program, which partners with the iNaturalist app, asks Appalachian Trail-goers to use their mobile devices to photograph plant life found in the White Mountain National Forest. Those images are automatically geo-tagged with date and location coordinates, which then assist researchers in learning more about the characteristics of forest and alpine vegetation.</p>
<p><a href="https://eorhawaii.org/about-eyes-of-the-reef/" target="_blank">Eyes of the Reef Hawai'i</a><br><em>Open to Hawai'i residents and tourists</em></p><p>The Eyes of the Reef is a statewide reporting network that encourages Hawai'ian Island ocean enthusiasts, fishers, and community members to assist in protecting Hawai'i's local reefs. Participants are asked to identify and report unhealthy reefs so that coral disease, coral bleaching, and invasive species spread events can be monitored by scientists as early as possible. Seventy to 90% of coral reefs will be killed off by warming oceans, ocean acidification, and pollution in the next 20 years, according to <a href="https://www.hawaii.edu/news/2020/02/24/climate-change-could-kill-coral-reefs/" target="_blank">a recent study</a> by a researcher at the University of Hawai'i at Mānoa. Coral reefs may be eliminated worldwide by the year 2100.</p>
<p><em>Reposted with permission from <a href="https://www.yaleclimateconnections.org/2020/07/7-climate-conscious-citizen-science-projects/" target="_blank">Yale Climate Connections</a>.</em></p><h5></h5>
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Left: Lemurs in Madagascar on March 30, 2017. Mathias Appel / Flickr. Right: A North Atlantic right whale mother and calf. National Marine Fisheries Service
A new analysis by scientists at the Swiss-based International Union for Conservation of Nature (IUCN) found that lemurs and the North Atlantic right whale are on the brink of extinction.
<p>For lemurs, the analysis found that almost one-third of the species in Madagascar are critically <a href="http://www.ecowatch.com/tag/endangered-species" target="_self">endangered</a> while 98 percent are threatened or worse, according to the IUCN's updated Red List of Threatened Species. The demise of lemurs is largely attributed to <a href="https://www.ecowatch.com/tag/deforestation" target="_self">deforestation</a> and hunting on the giant island off eastern Africa, conservationists said Thursday, as the <a href="https://apnews.com/82146ce2b2b9b98bb21b110eb14a797b#:~:text=GENEVA%20(AP)%20%E2%80%94%20Nearly%20all,eastern%20Africa%2C%20conservationists%20said%20Thursday." target="_blank">AP</a> reported.</p><p>To put that in numbers, instead of percentages, 33 lemur species are critically endangered, with 103 of the 107 surviving species threatened with extinction, according to the IUCN. The updated list now has 13 species pushed into the critically endangered category due to human activity.</p>
<p>The IUCN also says there were fewer than 250 mature North Atlantic right <a href="http://www.ecowatch.com/tag/whales" target="_self">whales</a> believed to be alive in 2018, marking a 15-percent drop since 2011. That number includes about only 100 breeding females.</p><p>"At the heart of this crisis is a dire need for alternative, sustainable livelihoods to replace the current reliance on deforestation and unsustainable use of wildlife," Grethel Aguilar, IUCN's acting director general, said in a statement, as <a href="https://www.washingtonpost.com/climate-environment/2020/07/09/north-atlantic-right-whale-is-face-an-extinction-crisis-report-says/" target="_blank">The Washington Post</a> reported. "These findings really bring home the urgent need for an ambitious post-2020 biodiversity framework that drives effective conservation action."</p>
<p>At the end of June, one dead whale was spotted off the coast of New Jersey. That six-month-old calf had been struck several times on the head, suggesting one or possibly two vessel collisions, according to <a href="https://www.nytimes.com/2020/07/09/climate/trump-north-atlantic-right-whale.html" target="_blank">The New York Times</a>. Increasingly, collisions with ships, entanglements in fishing nets, and underwater noise pollution are killing the animals, which rely on echolocation for basic activities such as feeding, communicating and finding mates, as <a href="https://www.washingtonpost.com/climate-environment/2020/07/09/north-atlantic-right-whale-is-face-an-extinction-crisis-report-says/" target="_blank">The Washington Post</a> reported.</p><p>The North Atlantic right whale also faces an increased threat from the <a href="https://www.ecowatch.com/tag/climate-crisis" target="_self">climate crisis</a>. The IUCN says that warming ocean temperatures have likely pushed the species' main prey species further north during summer, into the Gulf of St. Lawrence, where the whales are more exposed to accidental encounters with ships and also at high risk of entanglement in crab-pot ropes.</p><p>The whale's preferred home, in the Gulf of Maine's deep waters, has warmed nearly 9 degrees Fahrenheit since 2004, faster than 99 percent of the world's oceans for much of this century, according to <a href="https://www.nytimes.com/2020/07/09/climate/trump-north-atlantic-right-whale.html" target="_blank">The New York Times</a>.</p><p>The prospects are bleak for the North Atlantic right whale now that President <a href="http://www.ecowatch.com/trump-watch/">Trump</a> lifted restrictions on commercial fishing in a key area of the whale's habitat.</p>
<p>"Unless we act decisively to turn the tide, the next time the right whale's Red List status changes it will be to 'extinct,'" Jane Davenport, a senior attorney for Defenders of Wildlife, said in a statement, as The Washington Post reported.</p><p>The deaths of 30 Atlantic right whales were confirmed as human-caused between 2012 and 2016, according to the IUCN report, and all but four were caused by entanglement in fishing gear.</p><p>Peter Corkeron, a senior scientist at the New England Aquarium, has chronicled the gruesome deaths of right whales as the director of the National Oceanic and Atmospheric Association's research program for large whales for the last decade. He told the New York Times he feared the listing would have little impact.</p><p>"A lot of the dynamic was bad anyway, and under Trump it just got worse," Corkeron said. "People are terrified to do anything about right whales at the moment."</p>
<p>The update to the "Red List of Threatened Species" shows that 32,441 species are threatened out of a total of 120,372 on the list.</p><p>"We have to take bold and rapid action to reduce the huge damage we're doing to the planet if we're going to save whales, frogs, lemurs and ultimately ourselves," said Tierra Curry, a senior scientist at the Center for Biological Diversity, as The Washington Post reported. "We really can do all of these things, but we need world leaders to stand up and do them."</p>
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Data from a scientist measuring macroalgal communities in rocky shores in the Argentinean Patagonia would be added to the new system. Patricia Miloslavich / University of Delaware
Ocean scientists have been busy creating a global network to understand and measure changes in ocean life. The system will aggregate data from the oceans, climate and human activity to better inform sustainable marine management practices.
EcoWatch sat down with some of the scientists spearheading the collaboration to learn more.
<p>"There is the <a href="https://www.goosocean.org/" target="_blank">Global Ocean Observing System (GOOS)</a> and the <a href="https://marinebon.org/" target="_blank">Marine Biodiversity Observation Network (MBON)</a>. We're trying to put them together," explained Frank Muller-Karger, a professor at the University of South Florida studying phytoplankton, a member of the Biology & Ecosystems Panel (BioEco Panel) of GOOS and a co-founder of MBON.</p><p>GOOS recommends what kinds of essential measurements should be collected to address particular problems. Over the last few decades, physical variables (salinity, temperature, oxygen, etc.) have helped improved weather forecasts and understanding of how the ocean redistributes heat around the world, Muller-Karger said.</p>
<img lazy-loadable="true" src="https://assets.rebelmouse.io/eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpbWFnZSI6Imh0dHBzOi8vYXNzZXRzLnJibC5tcy8yMzQ0NzgxOS9vcmlnaW4uanBnIiwiZXhwaXJlc19hdCI6MTY0ODE2OTE0MX0.FEfKKy8pBNvRAcmFZxjv5NOR091Ic42VVpZLcCvQCCA/img.jpg?width=980" id="dc9f8" class="rm-shortcode" data-rm-shortcode-id="cc9679b2e14d4d050938af7041bed306" data-rm-shortcode-name="rebelmouse-image" />
Climate models are predicting faster warming of the North Atlantic Ocean, which will shift the Gulf Stream. NASA
<p>MBON has established biodiversity variables (genetics, number of species at a certain depth, ecosystem structure, etc.) to understand the structures of life in the oceans, explained Patricia Miloslavich, executive director of the Scientific Committee on Oceanic Research at the University of Delaware and member of both the BioEco Panel and MBON.</p><p>Now, scientists are trying to bridge the gap between the two observing networks by creating one "language" both systems can speak and in which all data can be collected and shared. A major goal is to be more efficient and effective in solving issues that affect people around the world by leveraging the oceans' resources sustainably. The effort will be a key contribution to the <a href="https://www.oceandecade.org/" target="_blank">United Nations Decade of Ocean Science for Sustainable Development</a> (2021 - 2030), an international effort under which top researchers have been collaborating to reverse ocean decline.</p><p>"Data have to be formatted and have to carry a measure of precision if you want any hope to understand how the world is changing," Muller-Karger said. "It's so difficult to make measurements in the sea, that if we don't follow standards, we end up with things we cannot compare. It complicates things even further."</p>
<p>Woody Turner, who works with NASA and remotely sensed data that will be incorporated into the new system, said the entire endeavor is about "coordination at a global scale to get a global view of the planet." He noted that people have been looking at phenomena in the ocean for centuries and that the hard part has always been stitching these diverse observations together.</p><p>"That's why the U.N. Decade is such a big deal. It's an effort to bring together natural and social scientists from around the world to deliberately tie things together and create a standardized global observation system for it all," he said.</p>
<p>The system will also link into a similar global climate observation system that has been in place for over 40 years, as well as account for human intervention. In this way, scientists hope to more fully understand how the two biggest stressors on the oceans — climate change and human activity — affect <a href="http://www.ecowatch.com/tag/biodiversity">biodiversity</a> and abundance of life in the oceans, Miloslavich said.</p><p>"This can be used by policymakers to better manage how we use the oceans," she added.</p><p>For example, through the system, scientists could explain the fact that the oceans off the northeast U.S. are warming and document the how and why of a northward-migration of lobsters to forecast whether specific action may <a href="https://www.ecowatch.com/lobsters-climate-change-2639919647.html?rebelltitem=1#rebelltitem1" target="_self">prevent the impending collapse of current fisheries</a> and the resultant shift towards new species in the ecosystem.</p>
<p>Traditional climate data would show the effect of increased emissions of greenhouse gases, the GOOS might measure higher water temperatures, and the MBON might separately register the disappearing lobster populations, but the new system would hopefully be able to connect it all. Fisheries managers could then anticipate shortening or shifting a catch season accordingly, making the fishery more effective and profitable.</p><p>"We really need to be measuring life and the diversity of life, because that's ultimately what we depend on," Muller-Karger said. "We don't eat bulk carbon; we eat fish and potatoes."</p><p>Fundamentally, the scientists are trying to create a way to link physical and chemical measurements to the changes in biodiversity and life in the oceans.</p><p>"We need to be able to harness all that information so we can profit more from the info we're collecting," said Nic Bax, co-chair of the BioEco Panel. "That multi-disciplinarity is really needed now."</p>
<p>Critically, the new integrated observing system also shows how human actions can increase biodiversity in a particular region, so that abundance and productivity can be used to improve human life in various ways, Bax explained.</p><p>For example, Turner and Maury Estes apply space-based satellite imagery of the Earth with sea-based measurements to improve aquaculture practices in Palau. This combats overfishing while sustaining the health of the people and the economy of the island nation. They are also applying such technologies to <a href="https://www.unenvironment.org/news-and-stories/story/mangrove-conservation-more-valuable-ever-thanks-carbon-trading" target="_blank">mangrove conservation</a> and restoration efforts in Kenya, where carbon credits are purchased to maintain mangroves as essential fish spawning grounds, increasing biological resilience while reducing human poverty.</p><p>"As we understand more, how we talk about sustainably developing the environment won't be just about how to not lose diversity, but about how to bring it back," Bax said. "A lot of things just require someone to invest in them, and financial markets need to be informed about what's going on in the larger system. This is a way to generate profit while improving the lives of people."</p><p>Turner added, "It's not only about saving life on the planet, it's about saving ourselves. It's a global problem, so we have to address it top-down, globally."</p>
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Authors of a new study warned Thursday that increasing carbon dioxide in the atmosphere is nearing a level not seen in 15 million years. Dawn Ellner / Flickr / CC by 2.0
By Jessica Corbett
As a United Nations agency released new climate projections showing that the world is on track in the next five years to hit or surpass a key limit of the Paris agreement, authors of a new study warned Thursday that increasing carbon dioxide in the atmosphere is nearing a level not seen in 15 million years.
<p><br/></p>
<p>For the study, <a href="https://www.nature.com/articles/s41598-020-67154-8" target="_blank">published</a> in the journal<em> Scientific Reports</em>, researchers at the University of Southampton in the United Kingdom examined CO2 levels during the Late Pliocene about three million years ago "to search for modern and near future-like climate states," co-author Thomas Chalk <a href="https://twitter.com/ChalkyOceans/status/1281182408554020864" target="_blank">explained</a> in a series of tweets.</p><p>"A striking result we've found is that the warmest part of the Pliocene had between 380 and 420 parts per million CO2 in the atmosphere," Chalk <a href="https://www.theguardian.com/environment/2020/jul/09/co2-in-earths-atmosphere-nearing-levels-of-15m-years-ago" target="_blank">told</a> the <em>Guardian</em>. "This is similar to today's value of around 415 parts per million, showing that we are already at levels that in the past were associated with temperature and sea-level significantly higher than today."</p><p>When CO2 levels peaked during the Pliocene, temperatures were 3ºC to 4ºC hotter and seas were 65 feet higher, the newspaper reported. Chalk said that "currently, our CO2 levels are rising at about 2.5 ppm per year, meaning that by 2025 we will have exceeded anything seen in the last 3.3 million years."</p><p>"We are burning through the Pliocene and heading towards a Miocene-like future," warned co-author Gavin Foster, referencing a period from about 23 to 5.3 million years ago. It was during the Miocene, around 15 million years ago, when "our ancestors are thought to have diverged from orangutans and become recognizably hominoid," the <em>Guardian</em> noted.</p>
<div id="1a097" class="rm-shortcode" data-rm-shortcode-id="3be1f37aee62477983e577219c84d7a9"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1281182404116385792" data-partner="rebelmouse"><div style="margin:1em 0">https://t.co/3sNdmN8mCz New study covered by @guardiannews, we look at CO2 levels in the Late Pliocene (~3 million… https://t.co/xRhhLcpdJ5</div> — Tom Chalk (@Tom Chalk)<a href="https://twitter.com/ChalkyOceans/statuses/1281182404116385792">1594292663.0</a></blockquote></div>
<p>Reporting on the study elicited concern and calls for action from environmentalists and advocacy groups.</p><p>"Every kilo of CO2 we emit is one we have to sequester later, provided the food doesn't run out first," <a href="https://twitter.com/xrfinland/status/1281177680948473857" target="_blank">tweeted</a> Extinction Rebellion Finland, urging the international community to <a href="https://twitter.com/hashtag/ActNow" target="_blank">#ActNow</a>.</p><p>Nathaniel Stinnett, executive director of the U.S.-based Environmental Voter Project, also <a href="https://twitter.com/NCStinn/status/1281186259998777351" target="_blank">responded</a> to the report on Twitter, saying, "Big Oil and Gas are killing us."</p><p>A new report released Thursday by the U.N.'s World Meteorological Organization (WMO) about global temperatures likely coming in the next five years provoked similar alarm and demands.</p>
<p>"It's still not too late to avoid the worst effects of the <a href="https://twitter.com/hashtag/ClimateEmergency?src=hashtag_click" target="_blank">#ClimateEmergency</a>. But governments need to act NOW," <a href="https://twitter.com/Greenpeace/status/1281166638897860608" target="_blank">declared</a> Greenpeace, pushing for a <a href="https://twitter.com/hashtag/GreenRecovery" target="_blank">#GreenRecovery</a> from the Covid-19 pandemic.</p><p>The WMO report projects that the annual global temperature is likely to be at least 1°C warmer than pre-industrial levels in each of the next five years. Although it is "extremely unlikely" the average temperature for 2020–2024 will be 1.5°C warmer than pre-industrial levels, WMO warned certain periods could hit that temperature.</p><p>Specifically, there is about a 70% chance that one or more months during those five years will be at least 1.5°C hotter than pre-industrial levels and about a 20% chance that one of the next five years will be at least that warm, according to WMO's Global Annual to Decadal Climate Update, led by the United Kingdom's Met Office.</p>
<div id="23d44" class="rm-shortcode" data-rm-shortcode-id="a800573625ce69a53bedfe537b572116"><blockquote class="twitter-tweet twitter-custom-tweet" data-twitter-tweet-id="1281123005695959040" data-partner="rebelmouse"><div style="margin:1em 0">Annual mean global temperature likely to be at least 1° C above pre-industrial levels in each of coming 5 years (20… https://t.co/WOBeEOhbCe</div> — World Meteorological Organization (@World Meteorological Organization)<a href="https://twitter.com/WMO/statuses/1281123005695959040">1594278501.0</a></blockquote></div>
<p>In a statement Thursday, WMO Secretary-General Petteri Taalas also <a href="https://public.wmo.int/en/media/press-release/new-climate-predictions-assess-global-temperatures-coming-five-years" target="_blank">pointed</a> to the coronavirus pandemic—which prompted global lockdowns that briefly <a href="https://www.commondreams.org/news/2020/05/20/after-coronavirus-triggers-17-emissions-drop-experts-say-only-fundamental-structural" target="_blank">caused</a> planet-heating emissions to drop—as an opportunity to pursue bold recovery plans that incorporate policies that combat the climate crisis, such as rapidly transitioning to renewable energy worldwide.</p><p>"WMO has repeatedly stressed that the industrial and economic slowdown from Covid-19 is not a substitute for sustained and coordinated climate action," Taalas said. "Due to the very long lifetime of CO2 in the atmosphere, the impact of the drop in emissions this year is not expected to lead to a reduction of CO2 atmospheric concentrations which are driving global temperature increases."</p><p>"Whilst Covid-19 has caused a severe international health and economic crisis, failure to tackle climate change may threaten human well-being, ecosystems, and economies for centuries," he continued. "Governments should use the opportunity to embrace climate action as part of recovery program and ensure that we grow back better."</p><p>Taalas added that "this study shows—with a high level of scientific skill—the enormous challenge ahead in meeting the Paris agreement on climate change target of keeping a global temperature rise this century well below 2°C above pre-industrial levels and to pursue efforts to limit the temperature increase even further to 1.5°C."</p><p>While some scientists and activists have criticized the 2015 Paris climate agreement as not ambitious enough, it is backed by nearly all nations on Earth. U.S. President Donald Trump <a href="https://www.commondreams.org/news/2019/11/04/delivering-catastrophic-message-moment-great-urgency-trump-formally-begins-ditching" target="_blank">began</a> the one-year withdrawal process in November 2019 but former Vice President Joe Biden, the presumed Democratic presidential nominee, has vowed to rejoin the accord if he wins this year's election.</p>
<p class=""><em>Reposted with permission from <a href="https://www.commondreams.org/news/2020/07/09/humanity-track-soon-hit-15oc-paris-accord-limit-atmospheric-co2-nears-level-not-seen" target="_blank">Common Dreams</a>.</em></p>From Your Site Articles
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Jane Goodall on Conservation, Climate Change and COVID-19: 'If We Carry on With Business as Usual, We're Going to Destroy Ourselves'
10 July
Climate
Dr. Jane Goodall, the world-renowned conservationist, desperately wants the world to pay attention to what she sees as the greatest threat to humanity's existence. Craig Barritt / Getty Images for TIME
By Jeff Berardelli
While COVID-19 and protests for racial justice command the world's collective attention, ecological destruction, species extinction and climate change continue unabated. While the world's been focused on other crises, an alarming study was released warning that species extinction is now progressing so fast that the consequences of "biological annihilation" may soon be "unimaginable."
<p><a href="https://www.janegoodall.org/" target="_blank">Dr. Jane Goodall</a>, the world-renowned conservationist, desperately wants the world to pay attention to what she sees as the greatest threat to humanity's existence.</p><p>CBS News recently spoke to Goodall over a video conference call and asked her questions about the state of our planet. Her soft-spoken grace somehow helped cushion what was otherwise extremely sobering news: "I just know that if we carry on with business as usual, we're going to destroy ourselves. It would be the end of us, as well as life on Earth as we know it," warned Goodall.</p><p>What follows is a lightly edited transcript of our conversation.<br> </p>
<p><strong><em>Jeff Berardelli:</em></strong> <strong>Destruction of nature is causing some really big concerns around the world. One that comes to the forefront right now is </strong><a href="https://www.cbsnews.com/news/coronavirus-environment-pandemic-infectious-diseases/" target="_blank"><strong>emergent diseases like COVID-19</strong></a><strong>. Can you describe how destruction of the environment contributes to this?</strong></p><p><strong></strong><strong><em>Dr. Jane Goodall:</em></strong> Well, the thing is, we brought this on ourselves because the scientists that have been studying these so-called zoonotic diseases that jump from an animal to a human have been predicting something like this for so long. As we chop down at stake <span style="background-color: initial;"><a href="https://www.cbsnews.com/news/coronavirus-brazil-amazon-rainforest-destruction/" target="_blank">tropical rainforest</a></span>, with its rich biodiversity, we are eating away the habitats of millions of animals, and many of them are being pushed into greater contact with humans. We're driving deeper and deeper, making roads throughout the habitat, which again brings people and animals in contact with each other. People are hunting the animals and <span style="background-color: initial;"><a href="https://www.cbsnews.com/news/wuhan-china-coronavirus-bans-eating-wild-animals-breeding-wet-markets/" target="_blank">selling the meat</a></span>, or trafficking the infants, and all of this is creating environments which are perfect for a virus or a bacteria to cross that species barrier and sometimes, like COVID-19, it becomes very contagious and we're suffering from it.</p><p>But we know if we don't stop destroying the environment and disrespecting animals — we're hunting them, killing them, eating them; killing and eating chimpanzees in Central Africa led to HIV/AIDS — there will be another one. It's inevitable.</p><p><strong>Do you fear that the next [pandemic] will be a lot worse than this one?</strong></p><p>Well, we've been lucky with this one because, although it's incredibly infectious, the percentage of people who die is relatively low. Mostly they recover and hopefully then build up some immunity. But supposing the next one is just as contagious and has a percentage of deaths like <a href="https://www.who.int/news-room/fact-sheets/detail/ebola-virus-disease" target="_blank">Ebola</a>, for example, this would have an even more devastating effect on humanity than this one.</p>
<p><strong>I think people have a hard time connecting these, what may look like chance events, with our interactions and relationship with nature. Can you describe to people why the way that we treat the natural world is so important?</strong><br></p><p>Well, first of all, it's not just leading to zoonotic diseases, and there are many of them. The destruction of the environment is also contributing to the <a href="https://www.cbsnews.com/climate-change/" target="_blank">climate crisis</a>, which tends to be put in second place because of our panic about the pandemic. We will get through the pandemic like we got through World War II, World War I, and the horrors following the World Trade towers being destroyed. But climate change is a very real existential threat to humankind and we don't have that long to slow it down. </p><p>Intensive farming, where we're destroying the land slowly with the chemical poisons, and the monocultures — which can be wiped out by a disease because there is no variation of crops being grown — is leading to habitat destruction. It's leading to the creation of more <span style="background-color: initial;"><a href="https://www.cbsnews.com/news/coronavirus-lockdowns-climate-change-carbon-dioxide-emissions/" target="_blank">CO2</a></span> through fossil fuels, methane gas and other greenhouse gas [released] by digestion from the billions of domestic animals.</p><p>It's pretty grim. We need to realize we're part of the environment, that we need the natural world. We depend on it. We can't go on destroying. We've got to somehow understand that we're not separated from it, we are all intertwined. Harm nature, harm ourselves.</p><p><strong>If we continue on with business as usual, what do you fear the outcome will be?</strong></p><p>Well, if we continue with business as usual, we're going to come to the point of no return. At a certain point the ecosystems of the world will just give up and collapse and that's the end of us eventually too.</p><p>What about our children? We're still bringing children into the world — what a grim future is theirs to look forward to. It's pretty shocking but my hope is, <a href="https://www.cbsnews.com/news/earth-day-how-the-pandemic-is-changing-air-pollution-levels/" target="_blank">during this pandemic</a>, with people trapped inside, factories closed down temporarily, and people not driving, it has <a href="https://www.cbsnews.com/news/coronavirus-photos-decline-air-pollution-lockdown/" target="_blank">cleared up the atmosphere</a> amazingly. The people in the big cities can look up at the night sky and sea stars are bright, not looking through a layer of pollution. So when people emerge [from the pandemic] they're not going to want to go back to the old polluted days.</p><p>Now, in some countries there's not much they can do about it. But if enough of them, a groundswell becomes bigger and bigger and bigger [and] people say: "No I don't want to go down this road. We want to find a different, green economy. We don't want to always put economic development ahead of protecting the environment. We care about the future. We care about the health of the planet. We need nature," maybe in the end the big guys will have to listen.</p>
<p><strong>I often think our economic future, which is always put at the forefront, is actually dependent upon our ecological future. Without an ecological future, there is not going to be any economic growth. Would you agree?</strong></p><p>Absolutely. I mean, it's all been said again and again, but fossil fuels are not infinite, they will come to an end, leading to a lot more destruction of the environment for sure. Forests and natural resources are not infinite and yet we're treating them as though they are, and in some places using them up more quickly than nature can replenish them.</p>We have to have a <span style="background-color: initial; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;"><a href="https://www.cbsnews.com/news/climate-change-action-economic-benefit-study-finds/" target="_blank">different kind of economy</a></span>, we need a different way of thinking about what is success.<strong> </strong>Is it just about having more and more money, more and more stuff, being able to show off to your friends, and the wasteful society we live in? We waste <span style="background-color: initial; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;"><a href="https://www.cbsnews.com/news/earth-day-2019-fashion-industrys-carbon-impact-is-bigger-than-airline-industrys/" target="_blank">clothes</a></span>, we waste <span style="background-color: initial; font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;"><a href="https://www.cbsnews.com/news/americans-waste-nearly-a-pound-of-food-each-per-day-study-finds/" target="_blank">food,</a></span> we waste laptops and cellphones. That pollutes the environment. So we've got to think differently, haven't we?<p><strong>So what do we do? Right now our worldview is based on GDP. You suggest that we think of it in a different way. So do you have a suggestion of how we rate our success other than GDP?</strong></p><p>I'm not an economist.<strong> </strong>I just know that if we carry on with business as usual, we're going to <a href="https://www.cbsnews.com/news/new-climate-change-report-human-civilization-at-risk-extinction-by-2050-new-australian-climate/" target="_blank">destroy ourselves</a>. It would be the end of us, as well as life on Earth as we know it.</p><p>So one thing we can do, those of us in affluent societies can almost all do with a bit less. We have a very unsustainable lifestyle. You can't really blame people, they grew up into it. But if you went through World War II like I did, when you took nothing for granted, one square of chocolate for a week is what we had and everything was rationed. So, you appreciate it. We never wasted even an ounce of food; not like today. </p><p>Then, we also have to alleviate poverty. Because if you're really poor you destroy the environment, you cut down the last trees to make land to grow more food for your family, or fish the last fish. Or if you're in an urban area you buy the cheapest junk food. You don't have the luxury of asking: how is this made, did it harm the environment, did it lead to the suffering of animals like in the factory farms, is it cheap because of child slave labor? You just have to buy the cheapest in order to survive. </p><p>Then the third thing, which nobody wants to talk about, but nevertheless ... there are approximately 7.8 billion of us on the planet today and already in some places we're using up natural resources faster than nature can replenish them. In 2050 it's estimated that there will be 9.7 billion of us. What will happen? We can't just go on burying it under the carpet. </p><p>Population issues are politically sensitive so I talk about voluntary population optimization. So that's OK, it's voluntary, it is your choice. You optimize it for your financial situation. People are desperate to educate their children and they can't educate eight anymore. So they love family planning, and women can space out their children so that they can have a child and look after it.</p>
<p><strong>Let's switch gears. I don't eat animals. I have a dog. I love my dog. Let's talk about the idea that animals have feelings and that pigs are as intelligent as dogs...</strong></p><p>You know, animals are so much more intelligent than people used to think, and they have feelings and emotions and personalities, like your dog, any animal you share your life with. You know, birds now are making tools and octopus are incredibly intelligent. And when we think of all this trafficking of animals, selling them in meat markets or factory farms, when you think that each one one is an individual, can feel fear and pain, can suffer mentally as well as physically, isn't it shocking? I'm glad you don't eat them. I don't either, of course. </p><p>The shock and horror because in China and South Korea they <span style="background-color: initial;"><a href="https://www.cbsnews.com/news/dog-meat-festival-china-underway-in-yulin-but-activists-hope-it-will-be-the-last-amid-coronavirus/" target="_blank">eat dogs</a></span> — well, the thought of eating a dog makes me feel particularly sick, but not more sick than eating a pig. They eat dogs and we don't like it, but we eat pigs, and they are as intelligent as dogs.</p><p>Isn't the point, if you must eat an animal shouldn't you treat it really well, like the Native Americans, respect the animal and give thanks that it's sacrificed itself for you?</p><p><strong>This is a bit more of a thought-provoking question: What has led us to this over-consumption in society? There is an idea that perhaps there is a Biblical basis, that we have dominion, that we're in charge, and because we're in charge we're able to do what we want. Can you give me an idea of why we are where we are, as a world right now, and what led us here? </strong></p><p>[Laughing]<strong> </strong>You think I'm going to be able to answer all these questions?</p><p><strong>I know it's a lot, but I know that you must have some thoughts on this.</strong></p><p><strong></strong>Well, first of all, I do think that religion has played a role. I was told by a Hebrew scholar the original translation of that word that you just mentioned, "dominion," is wrong. It's actually something more like "stewardship." That's very different. If God gave us stewardship that's different from saying we have dominion. So I think religion started this thinking that we're so different from all the other animals and I was taught there was a difference in kind, not degree. Thank goodness the chimpanzees are so like us biologically, as well as behaviorally, that science had to start thinking differently.</p><p>So how did we get there? It's sort of been like this all throughout human history. There were so many fewer of us back then that we could have these unsustainable lifestyles and it didn't really matter; they were sustainable. Think of how people have always exploited the natural world just because we can. And so there's been a lag between developing new technologies [which enable us to] destroy whole forests. Whereas the indigenous people might take a week to cut down the big tree, we can do it in an hour. And the moral evolution and the sense of a spiritual awareness and connection to the natural world on which we depend, that's lagged behind as well.</p>
<p><strong>So how do we repair that? How do we rediscover our connection to the rest of the natural world?</strong></p><p>As I think you know, I began a program for young people back in 1991 called <a href="https://www.rootsandshoots.org/" target="_blank">Roots and Shoots</a> because young people had lost hope in the future. I've met them all over the world. They were mostly apathetic and didn't seem to care. Or they were angry or deeply depressed and they told me they felt like that because we compromised their future and there was nothing they could do about it. And we have compromised their future. We've been stealing it for years and years. And yes, we still are still stealing it today. But when they said there was nothing they could do I thought, no, that's not right. We got this window of time. If we all get together, take action, we can start healing some of the harm, we can start slowing down climate change and we can work on educating people. </p><p>Kids are really good at educating their parents and grandparents, some of whom may be in positions to make a huge difference, like CEOs of big companies or people in government. That program is now kindergarten to university and everything in between. It's in 68 countries and growing. Every group has the message: Each one of us — and that means you as well as me — we make some impact every single day and we have the luxury of choosing the impact that we make.</p>
<p class=""><em>This story originally appeared in</em> <em><a href="https://www.cbsnews.com/" target="_blank">CBS News</a>,</em> <em>and is republished here as part of Covering Climate Now, a global journalism collaboration strengthening coverage of the climate story.</em></p>From Your Site Articles
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In the tropics, farmers often slash and burn forests to clear fertile land for crops, but a new method avoids that technique. Inga Foundation video
Rainforests are an important defense against climate change because they absorb carbon. But many are being destroyed on a massive scale.
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<p>In the tropics, farmers often slash and burn forests to clear fertile land for crops. The practice involves cutting down vegetation and burning it. But the soil's fertility does not last long, so the farmers must clear a new patch of forest every few years.</p><p>"People believe it's the only possible way of growing crops," says ecologist Michael Hands.</p><p>But he says there's an alternative. Hands directs the Inga Foundation, which teaches farmers in Honduras and Costa Rica a method called <a target="_blank" href="http://www.ingafoundation.org/alley-cropping/">inga alley cropping</a>.</p><p>The inga is a fast-growing tree with roots that fix nitrogen, so it replenishes the soil.</p>
<p>In alley cropping, farmers plant inga trees in rows. Their shade kills weeds and creates space for planting maize or beans. Then the trees are pruned back so sunlight can reach the crops until harvest.</p><p>"And you can repeat the process the following year," Hands says.</p><p>The ingas' roots keep the soil rich, so the farmer does not need to slash and burn more land. That means less carbon pollution and less labor.</p><p>"It's definitely transforming people's lives," Hands says.</p>
<p><em>Reposted with permission from <a href="https://www.yaleclimateconnections.org/2020/07/farmers-learn-alternative-to-slashing-and-burning-rainforests/" target="_blank">Yale Climate Connections</a>.</em></p>From Your Site Articles
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A truck spreads lime on a meadow to increase the soil's fertility in Yorkshire Dales, UK. Farm Images / Universal Images Group via Getty Images
As we look for advanced technology to replace our dependence on fossil fuels and to rid the oceans of plastic, one solution to the climate crisis might simply be found in rocks. New research found that dispersing rock dust over farmland could suck billions of tons of carbon dioxide from the air every year, according to the first detailed large scale analysis of the technique, as The Guardian reported.
<p>The <a href="https://www.nature.com/articles/s41586-020-2448-9" target="_blank">study</a>, published Wednesday in the journal <em>Nature,</em> found the technique could pull enough carbon dioxide from the atmosphere to remove about half of the amount of that greenhouse gas currently produced by Europe. To put it another way, that would mean pulling more CO2 from the atmosphere than the current total emissions from global aviation and shipping combined, according to a <a href="https://www.newswise.com/articles/applying-rock-dust-to-croplands-could-absorb-up-to-2-billion-tonnes-of-co2-from-the-atmosphere-research-shows" target="_blank">press release</a> from the University of Sheffield where the study was conducted.</p><p>"Spreading rock dust on agricultural land is a straightforward, practical CO2 drawdown approach with the potential to boost soil health and food production, said David Beerling, director of the Leverhulme Center for Climate Change Mitigation at the University of Sheffield and lead author of the study. "Our analyses reveal the big emitting nations – China, the US, India – have the greatest potential to do this, emphasizing their need to step up to the challenge."</p>
<p>The research showed that if the world's three largest emitters of CO2 — China, the U.S. and India — adopted the practice on a large scale, they could collectively clear about 1 billion metric tons of carbon dioxide from the air, as <a href="https://www.washingtonpost.com/climate-solutions/2020/07/08/spreading-rock-dust-ground-could-pull-carbon-air-researchers-say/" target="_blank">The Washington Post</a> reported.</p><p>The technique of spreading rock on the ground is known as enhanced rock weathering. The researchers took a realistic approach to perform a global analysis of the technique. The researchers say their modeling of enhanced rock weathering is the most realistic yet because it factors in how much rock is available and the energy countries would be willing to use for grinding it up, as <a href="https://www.newscientist.com/article/2248222-a-sprinkle-of-rock-dust-could-help-avoid-catastrophic-climate-change/" target="_blank">The New Scientist</a> reported.</p>
<p>Looking at each country's climate, farmland and energy infrastructure, they found that rock dust could remove between 0.5 and 2 gigatons of CO2 annually by 2050. Right now, global dependence on fossil fuels emits around 35 gigatons of CO2 each year, according to The New Scientist.</p><p>Enhanced rock weathering is a system where crushed rock is layered into the soil. As The Washington Post explained, when silicate or carbonate minerals in the dust dissolve in rain, carbon dioxide is drawn from the atmosphere into the solution to form bicarbonate ions. The bicarbonate ions then run off into the ocean, where they form carbonate minerals and store their carbon indefinitely.</p><p>The Guardian noted that while researchers are clear that the most important step to fighting the climate crisis is drastically reducing emissions, a reduction in emissions won't be enough to keep the world from breaking the targets of the Paris agreement keeping global temperature rise below 2 degrees Celsius. In order to achieve lasting success, the excess carbon in the atmosphere also needs to be removed.</p>
<p>"We have passed the safe level of greenhouse gases. Cutting fossil fuel emissions is crucial, but we must also extract atmospheric CO2 with safe, secure and scalable carbon dioxide removal strategies to bend the global CO2 curve and limit future climate change," said James Hansen, a partner in the study and director of the Climate Science, Awareness and Solutions Program at Columbia University's Earth Institute, in a press release. "The advantage of CO2 removal with crushed silicate rocks is that it could restore deteriorating top-soils, which underpin food security for billions of people, thereby incentivizing deployment."</p><p>The researchers say that enhanced rock weathering has several advantages, according to The Guardian. First, many farmers already add limestone dust to <a href="http://www.ecowatch.com/tag/soil">soils</a> to reduce acidification, and adding other rock dust improves fertility and crop yields, meaning the application could be both routine and desirable.</p><p>"CO2 drawdown strategies that can scale up and are compatible with existing land uses are urgently required to combat climate change, alongside deep emissions cuts," said Beerling. "Enhanced rock weathering is a straightforward, practical approach."</p>
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Global heating imposes a harsh cost at the most critical time of all: the moment of spawning. Pxfuel
By Tim Radford
German scientists now know why so many fish are so vulnerable to ever-warming oceans. Global heating imposes a harsh cost at the most critical time of all: the moment of spawning.
<p>"Our findings show that, both as embryos in eggs and as adults ready to mate, fish are far more sensitive to heat than in their larval stage or as sexually mature adults outside the mating season," said <a href="https://www.researchgate.net/profile/Flemming_Dahlke" target="_blank">Flemming Dahlke, a marine biologist</a> with the <a href="https://www.awi.de/" target="_blank">Alfred Wegener Institute at Bremerhaven</a>.</p><p>"On the global average, for example, adults outside the mating season can survive in water that's up to 10°C warmer than adults ready to mate, or fish eggs, can."</p><p>The finding – if it is confirmed by other research – should clear up some of the puzzles associated with fish numbers. There is clear evidence, established repeatedly over the decades, that <a href="https://climatenewsnetwork.net/ocean-heatwaves-drive-more-fish-north/" target="_blank">fish are responding to climate change</a>.</p><p>But almost three fourths of the planet is blue ocean, and <a href="https://climatenewsnetwork.net/hunger-threat-as-tropical-fish-seek-cooler-waters/" target="_blank">at depth is responding far more slowly</a> than the land surface to global heating fueled by fossil fuel exploitation that releases greenhouse gases.</p>
Nearing the Brink
<p>Since <a href="https://climatenewsnetwork.net/abundant-fish-need-cool-seas-and-protection/" target="_blank">fish in the temperate zones already experience a wide variation</a> in seasonal water temperatures, it hasn't been obvious why species such as <a href="https://climatenewsnetwork.net/sardines-swim-into-northern-waters-to-keep-cool/" target="_blank">cod have shifted nearer the Arctic, and sardines have migrated to the North Sea</a>.</p><p>But <a href="https://climatenewsnetwork.net/ocean-warming-spurs-marine-life-to-rapid-migration/" target="_blank">marine creatures are on the move</a>, and although there are other factors at work, including overfishing and <a href="https://climatenewsnetwork.net/fish-cant-smell-well-in-more-acidic-seas/" target="_blank">the increasingly alarming changes in ocean chemistry</a>, thanks to ever-higher levels of dissolved carbon dioxide, temperature change is part of the problem.</p><p>The latest answer, Dr Dahlke and his colleagues report in the journal <a href="https://science.sciencemag.org/cgi/doi/10.1126/science.aaz3658" target="_blank">Science</a>, is that many fish may already be living near the limits of their thermal tolerance.</p><p>The temperature safety margins during the moments of spawning and embryo might be very precise, and over hundreds of thousands of years of evolution, marine and freshwater species have worked out just what is best for the next generation. Rapid global warming upsets this equilibrium.</p><p>The Bremerhaven scientists looked at experiments, observations and recorded data for the life cycles of 694 marine and freshwater species, to decide that oxygen supply is the key decider of reproductive success. Warmer waters carry less dissolved oxygen. Embryo fish have no gills: they cannot simply take in deeper breaths.</p><p>Fish about to mate are busy producing extra mass in the form of sperm and egg cells: this additional body mass also needs oxygen. Even at lower temperatures, piscine cardiovascular systems are under stress.</p><p>So the reasoning follows that, if global heating continues, climate change and rising water temperatures are likely to affect the reproduction of perhaps 60% of all fish species.</p><p>"Some species might successfully manage this change," Dr Dahlke said. "But if you consider the fact that fish have adapted their mating patterns to specific habitats over extremely long timeframes, and have tailored their mating cycles of specific ocean currents and food sources, it has to be assumed that being forced to abandon their normal spawning areas will mean major problems for them."</p>
<p class=""><em>Reposted with permission from <a href="https://climatenewsnetwork.net/warming-oceans-deter-more-fish-from-spawning/" target="_blank">Climate News Network</a>.</em></p>
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