Scientists Find Plants Are Growing Higher up the Himalayas
Researchers looked at satellite data from 1993 to 2018 and found plant life extending into the harsh terrain between the top of the tree line and the bottom of the snowline. The new growth may have large impacts on the water that feeds the rivers that flow down from the Himalayas, according to lead researcher, Karen Anderson, of the University of Exeter in the UK.
"If the ecology is changing, that will have impacts on the hydrology. Nobody's considered that before," she said, as the New Scientist reported.
That's significant since nearly 1.4 billion people rely on water from the Himalayas, according to The Telegraph.
Anderson and her team looked at 25 years of images from NASA's Landsat satellites to zero in on the subnival region - the area between the tree line (the edge of where trees can grow) and the snow line (the boundary between permanently snow-covered land and snow-free land), as BBC reported. The rocky, cold terrain that is over 4,500 meters (13,600 feet) above sea level is particularly inhospitable to most plants, meaning the vegetation is mostly shrubs and grasses.
The subnival region is also very large, extending five to 15 times the size of the landmass covered in snow and ice, according to the study. "Yet, the harsh conditions make the area difficult to study. There's hardly any ecological data from this region at all," said Anderson, as the New Scientist reported.
For this paper, Anderson and her team focused on three sections of the Hindu Kush Himalaya, a range that stretches from Afghanistan in the west to Myanmar in the east, as Newsweek reported.
"The strongest trend in increased vegetation cover was between 5,000 meters and 5,500 meters altitude," said Anderson, as BBC reported. "At higher elevations, the expansion was strong on flatter areas while at lower levels that has been observed on steeper slopes."
There is no definitive reason that plants are moving to higher elevations, but the climate crisis is a likely culprit. "My initial guess would be that the primary driver is temperature limitation being removed," said Anderson to the New Scientist. She added that extra carbon dioxide in the atmosphere could also be helping the plants grow.
The climate crisis is dramatically affecting the Himalayas, which are warming rapidly due to greenhouse gas emissions. That has meant that elevations that were once too cold for plants may now be hospitable to them, as the New Scientist reported.
Already, concern has grown over the Himalayas' melting glaciers and how it will alter borders between countries. Furthermore, the melting glaciers will wreak havoc on the water supplies of countries that rely on runoff, causing an increase in floods and droughts.
Water that runs from the Himalayas feeds the 10 largest rivers in Asia, and 250 million rely on water from the range's glaciers, which are threatened by global warming, as the Telegraph reported. If global warming is somehow held to 1.5 degrees Celsius above pre-industrial levels, then one-third of the Himalayan ice caps will still melt away.
Anderson told the New Scientist that it is crucial to figure out how the new vegetation climbing the mountains will affect the flow of water. Plant growth may trap more heat, causing the snow to melt faster.
"The plants could trap more snow. Or the plants could warm the areas nearby through albedo effects, causing the snow to melt at a different rate," she said, as the Telegraph reported.
- Himalayan Glacier Melt Has Doubled Since 2000, Satellites Show ... ›
- Living in Hope and Fear Beside India's Retreating Himalayan Glaciers ›
By Victoria Masterson
Using one of the world's problems to solve another is the philosophy behind a Norwegian start-up's mission to develop affordable housing from 100% recycled plastic.
Sustainable Homes<p>UN-Habitat says an <a href="https://unhabitat.org/un-habitat-aims-to-use-plastic-waste-to-support-housing-for-all" target="_blank">estimated 60% of people living in urban areas of Africa are in informal settlements</a>. At the same time, between 1990 and 2017, African countries imported around 230 metric tonnes of plastic, "which mostly ended up in dump sites creating a massive environmental challenge," the agency adds.</p><p>UN-Habitat deputy executive director, Victor Kisob, said the aim of the partnership with Othalo was to "promote adequate, sustainable and affordable housing for all."</p>
Artist's impression of an Othalo community, imagined by architect Julien De Smedt. Othalo<p>Othalo's process involves shredding plastic waste and mixing it with other elements, including non-flammable materials. Components are used to build up to four floors, with a home of 60 square metres using eight tons of recycled plastic. A factory with one production line can produce 2,800 housing units annually.</p><p>Following successful laboratory tests, Othalo's factory in Estonia has started producing components to build three demonstration homes for Kenya's capital, Nairobi; Yaoundé, the capital of Cameroon and Dakar, the capital of Senegal.</p><p>Othalo founder Frank Cato Lahti has been developing and testing the technology since 2016 in partnership with <a href="https://www.sintef.no/en/" target="_blank">SINTEF</a>, a 70-year-old independent research organization in Trondheim, Norway, and experts at Norway's <a href="https://en.uit.no/startsida" target="_blank" rel="noopener noreferrer">University of Tromsø</a>.</p>
Othalo founder Frank Cato Lahti. Othalo<p>Almost <a href="https://www.un.org/development/desa/publications/2018-revision-of-world-urbanization-prospects.html" target="_blank">seven out of every 10 people in the world are expected to live in urban areas by 2050</a>. More than 90% of this growth will take place in Africa, Asia, Latin America, and the Caribbean.</p><p>"In the absence of effective urban planning, the consequences of this rapid urbanization will be dramatic," UN-Habitat warns.</p><p>Lack of proper housing and growth of slums, inadequate and outdated infrastructure, escalating poverty and unemployment, and pollution and health issues, are just some of the effects.</p><p>Mindsets, policies, and approaches towards urbanization need to change for the growth of cities and urban areas to be turned into opportunities that will leave nobody behind, UN-Habitat says.</p>
Pioneers of Change<p>Reimagining cities and communities for greater resilience and sustainability was a key topic at the<a href="https://www.weforum.org/events/pioneers-of-change-summit-2020" target="_blank"> World Economic Forum's Pioneers of Change Summit 2020</a>.</p><p>The digital event brought together innovators and stakeholders from around the world to explore solutions to the challenges facing enterprises, governments and society.</p><p>Opening the summit, <a href="https://www.weforum.org/events/pioneers-of-change-summit-2020/sessions/opening-plenary-8f731cbc65" target="_blank">Stephan Mergenthaler, the Forum's Head of Strategic Intelligence and a member of the Executive Committee</a>, said: "We need to change the way we produce, the way we live and interact in our cities to make this transition to net-zero emissions a reality…</p><p>"And as this year has illustrated so dramatically, we need to make every effort that we keep populations healthy, if we want to avoid jeopardizing all this progress."</p><p><em>Reposted with permission from </em><em><a href="https://www.weforum.org/agenda/2020/11/un-africa-recycled-plastic-housing/" target="_blank">World Economic Forum</a>.</em><a href="https://www.ecowatch.com/r/entryeditor/2649069252#/" target="_self"></a></p>
- What Happens to Recycled Plastic? Researchers Lift the Lid ... ›
- This Eco-Village Is Being Built From More Than 1 Million Recycled ... ›
EcoWatch Daily Newsletter
By Brett Wilkins
Despite acknowledging that the move would lead to an increase in the 500 million to one billion birds that die each year in the United States due to human activity, the Trump administration on Friday published a proposed industry-friendly relaxation of a century-old treaty that protects more than 1,000 avian species.
- Hundreds of Thousands of Migratory Birds 'Falling Out of the Sky' in ... ›
- Scientists at Work: Sloshing Through Marshes To See How Birds ... ›
Many people shop online for everything from clothes to appliances. If they do not like the product, they simply return it. But there's an environmental cost to returns.
- Are We Doomed If We Don't Curb Carbon Emissions by 2030 ... ›
- California Winery Cuts Carbon Emissions With Lighter Bottles ... ›
- Wealthy One Percent Are Producing More Carbon Emissions Than ... ›
By Dolf Gielen and Morgan Bazilian
John Kerry helped bring the world into the Paris climate agreement and expanded America's reputation as a climate leader. That reputation is now in tatters, and President-elect Joe Biden is asking Kerry to rebuild it again – this time as U.S. climate envoy.
Energy Is at the Center of the Climate Challenge<p>The <a href="https://science2017.globalchange.gov/chapter/1/" target="_blank">effects of climate change</a> are already evident across the globe, from <a href="https://theconversation.com/100-degrees-in-siberia-5-ways-the-extreme-arctic-heat-wave-follows-a-disturbing-pattern-141442" target="_blank">extreme heat waves</a> to <a href="https://science2017.globalchange.gov/chapter/12/" target="_blank">sea level rise</a>. But while the challenge is daunting, there is hope. Solar and wind power have become the <a href="https://www.irena.org/publications/2020/Jun/Renewable-Power-Costs-in-2019" target="_blank">cheapest forms of power generation globally</a>, and technology progress and innovation continue apace to support a transition to clean energy.</p><p>In the U.S. under a Biden administration, long-term national climate legislation will depend on who controls the Senate, and that won't be clear until after two run-off elections in Georgia in January.</p><p>But there is no shortage of <a href="https://www.bloomberg.com/features/2020-biden-climate-change-advice/" target="_blank">ideas for ways Biden</a> could still take action even if his proposals are blocked in Congress. For example, he could use executive orders and direct government agencies to tighten regulations on greenhouse gas emissions; increase research and development in clean energy technologies; and empower states to exceed national standards, <a href="https://www.reuters.com/article/us-autos-emissions-california/defying-trump-california-locks-in-vehicle-emission-deals-with-major-automakers-idUSKCN25D2CH" target="_blank" rel="noopener noreferrer">as California did in the past with auto emission standards</a>. A focus on a just and equitable transition for communities and people affected by the decline of fossil fuels will also be key to creating a sustainable transition.</p><p>The U.S. position as the world's largest oil and gas producer and consumer creates political challenges for any administration. U.S. forays into European energy security are often treated with suspicion. Recently, France blocked <a href="https://www.wsj.com/articles/frances-engie-backs-out-of-u-s-lng-deal-11604435609" target="_blank">a multi-billion dollar contract</a> to buy U.S. liquefied natural gas because of concerns about limited emissions regulations in Texas.</p><p>Strengthening cooperation and partnerships with like-minded countries will be critical to bring about a transition to cleaner energy as well as sustainability in agriculture, forestry, water and other sectors of the global economy.</p>
Creating a Global Sustainable Transition<p>How the world recovers from COVID-19's economic damage could help drive a lasting shift in the global energy mix.</p><p>Nearly one-third of Europe's US$2 trillion economic relief package <a href="https://www.bloomberg.com/news/articles/2020-07-21/eu-approves-biggest-green-stimulus-in-history-with-572-billion-plan" target="_blank" rel="noopener noreferrer">involves investments that are also good for the climate</a>. The European Union is also strengthening its 2030 climate targets, though each country's energy and climate plans will be critical for successfully implementing them. The <a href="https://joebiden.com/clean-energy/" target="_blank" rel="noopener noreferrer">Biden plan</a> – including a $2 trillion commitment to developing sustainable energy and infrastructure – is aligned with a global energy transition, but its implementation is also uncertain.</p><p>Once Biden takes office, Kerry will be joining ongoing <a href="https://www.un.org/en/conferences/energy2021/about#:%7E:text=The%20overarching%20goal%20of%20the,2030%20Agenda%20for%20Sustainable%20Development.&text=Accelerate%20delivery%20of%20United%20Nations,related%20issues%20at%20all%20levels." target="_blank" rel="noopener noreferrer">high-level discussions on the energy transition</a> at the U.N. General Assembly and other gatherings of international leaders. With the U.S. no longer obstructing work on climate issues, the G-7 and G-20 have more potential for progress on energy and climate.</p><p>Lots of technical details still need to be worked out, including international trade frameworks and standards that can help countries lower greenhouse gas emissions enough to keep global warming in check. <a href="https://www.carbonpricingleadership.org/what" target="_blank" rel="noopener noreferrer">Carbon pricing</a> and <a href="https://www.csis.org/analysis/how-can-europe-get-carbon-border-adjustment-right" target="_blank" rel="noopener noreferrer">carbon border adjustment taxes</a>, which create incentive for companies to reduce emissions, may be part of it. A consistent and comprehensive set of national energy transition plans will also be needed.</p><p>The global shift to <a href="https://www.irena.org/publications/2019/Jan/A-New-World-The-Geopolitics-of-the-Energy-Transformation" target="_blank">clean energy will also have geopolitical implications for countries and regions</a>, and this will have a profound impact on wider international relations. Kerry, with his experience as secretary of state in the Obama administration, and Biden's plan to make the climate envoy position part of the National Security Council, may help mend these relations. In doing so, the U.S. may again join the wider community of countries willing to lead.</p>
- 14 States On Track to Meet Paris Targets - EcoWatch ›
- Biden Vows to Ax Keystone XL if Elected - EcoWatch ›
- Biden Names John Kerry as First-Ever Climate Envoy - EcoWatch ›
By Maria Caffrey
As we approach the holidays I, like most people, have been reflecting on everything 2020 has given us (or taken away) while starting to look ahead to 2021.