By Alex Kirby
The global watchdog responsible for protecting the world's wealth of species, the UN's Convention on Biological Diversity (CBD), has looked at the hopes for reining in climate change through geoengineering. Its bleak conclusion, echoing that reached by many independent scientists, is that the chances are "highly uncertain."
"Novel means," in this context, describes trying to reduce greenhouse gas emissions in two main ways: removing them from the atmosphere and altering the amount of heat from the sun that reaches the Earth. A third method—trying to increase the amount of carbon in the oceans—has so far shown disappointing results.
Biofilm used in research into carbon capture: Doubts persist about geoengineering.Energy.gov / Wikimedia Commons
Some scientists and policymakers say geoengineering, as these strategies are collectively known, is essential if the world is to meet the goals of the Paris agreement. This is because current attempts to reduce emissions cannot make big enough cuts fast enough to keep global average temperatures from rising more than 2 C above their pre-industrial levels, the agreement's basic goal.
But the CBD says in a report that geoengineering, while it could possibly help to prevent the world overheating, might endanger global biodiversity and have other unpredictable effects.
Many independent analysts have raised similar concerns. One report doubted that geoengineering could slow sea-level rise. Another said it could not arrest the melting of Arctic ice. A third study found that geoengineering would make things little better and might even make global warming worse.
The lead author of the CBD geoengineering report is a British scientist, Dr. Phillip Williamson, of the UK's Natural Environment Research Council. He is an associate fellow in the School of Environmental Sciences at the University of East Anglia, UK.
The CBD originally became involved in climate geoengineering in 2008, because member governments were concerned that experiments to fertilize the oceans could pose unknown risks to the environment (they were then unregulated when carried out in international waters).
National Academy of Sciences Says #Geoengineering Is Not the Answer to #Climate Change » EcoWatch http://t.co/Ci32M0Ubqk— Selina (@Selina)1427473595.0
The CBD's concern expanded to include other geoengineering techniques, especially atmospheric methods which could have uncertain transboundary impacts. Some scientists argue that "geoengineering" is a hazily-defined term and prefer to speak instead simply of "greenhouse gas removal."
Dr. Williamson and his colleagues say assessment of the impacts of geoengineering on biodiversity "is not straightforward and is subject to many uncertainties."
On greenhouse gas removal they warn that removing a given quantity of a greenhouse gas would not fully compensate for an earlier "overshoot" of emissions.
In some cases, they say, the cure may be worse than the disease: "The large-scale deployment of bioenergy with carbon capture and storage seems likely to have significant negative impacts on biodiversity through land use change."
When it comes to attempts to reflect sunlight back out into space or to manage solar radiation, a familiar theme recurs: "There are high levels of uncertainty about the impacts of SRM [solar radiation management] techniques, which could present significant new risks to biodiversity."
Time and again, it seems, a potential advance is liable to be cancelled by an equally likely reverse: If SRM benefits coral reefs by decreasing temperature-induced bleaching (as it may), in certain conditions "it may also increase, indirectly, the impacts of ocean acidification." There could even be a risk in some circumstances of loss to the Earth's protective ozone layer.
Dr. Williamson and his colleagues believe that geoengineering is essential—if it can be made to work—because of the diminishing chances that anything else will.
They write: "It may still be possible that deep and very rapid decarbonization by all countries might allow climate change to be kept within a 2 C limit by emission reduction alone. However, any such window of opportunity is rapidly closing."
Repeatedly, those two words recur: a suggested technique or development will be "highly uncertain." Most of the report amounts to a very cautious call for more research, coupled with an implicit acceptance that in the end geoengineering is unlikely to prove capable of contributing much to climate mitigation.
Dr. Williamson told the Climate News Network: "I'm skeptical. That's not to say bio-energy with carbon capture and storage is impossible, but it seems extremely unlikely to be feasible (for all sorts of reasons)" at the scale needed.
When the CBD member governments meet in December they are expected to call for more research: A safe option in most circumstances, but far from a ringing endorsement of a technology once seen as very promising.
Reposted with permission from our media associate Climate News Network.
By Richard B. Primack
Weather patterns across the U.S. have felt like a roller coaster ride for the past several months. December and January were significantly warmer than average in many locations, followed by February's intense cold wave and a dramatic warmup.
The leaves on this cherry tree have suffered damage from a late frost. Richard Primack, CC BY-ND
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EcoWatch Daily Newsletter
By Jeff Masters
The American Society of Civil Engineers (ASCE) gave America's infrastructure a C- grade in its quadrennial assessment issued March 3. ASCE gave the nation's flood control infrastructure – dams and levees – a D grade. This is a highly concerning assessment, given that climate change is increasingly stressing dams and levees as increased evaporation from the oceans drives heavier precipitation events.
Figure 1. Debris fills the Feather River from the damaged spillway of California's Oroville Dam, the nation's tallest dam, after its near-collapse in February 2017. The Oroville incident forced the evacuation of nearly 190,000 people and cost $1.1 billion in repairs. California Department of Water Resources
Figure 2. The L-550 levee on the Missouri River overtopping during the spring 2011 floods. USACE
By Jacob Carter
On Wednesday, the Department of the Interior (DOI) announced that it will be rescinding secretarial order 3369, which sidelined scientific research and its use in the agency's decisions. Put in place by the previous administration, the secretarial order restricted decisionmakers at the DOI from using scientific studies that did not make all data publicly available.
Science Rising at Interior<p>The rescinded secretarial order is not the only notable victory we have seen from the DOI recently. The Biden administration has moved swiftly to <a href="https://www.nytimes.com/2021/03/02/climate/biden-interior-department-haaland.html" target="_blank">restore consideration of climate change</a> in its decisions, <a href="https://www.nationalgeographic.com/environment/article/biden-expected-to-reverse-trump-order-to-shrink-utah-national-monuments" target="_blank">reverse assaults on our public lands</a>, and <a href="https://www.audubon.org/news/biden-halts-trump-rule-gutted-landmark-bird-protection-law" target="_blank">taken actions to protect our nation's wildlife</a>. These decisions, unlike many made at the DOI over the past four years, have been informed by science—and President Biden's pick to lead the DOI, Representative Deb Haaland of New Mexico, has <a href="https://www.cnn.com/2021/02/22/politics/haaland-confirmation-remarks/index.html" target="_blank">promised in her confirmation hearing</a> to continue to make decisions that are guided by science.</p><p><strong>Saving Migratory Birds</strong></p><p>One of the parting gifts of the prior administration was a <a href="https://blog.ucsusa.org/jacob-carter/outgoing-administration-gave-thumbs-up-to-migratory-bird-massacre-its-time-to-reverse-the-damage" target="_blank">reinterpretation of a long-standing rule that protected migratory bird species</a>. For decades, the <a href="https://www.fws.gov/birds/policies-and-regulations/laws-legislations/migratory-bird-treaty-act.php" target="_blank" rel="noopener noreferrer">Migratory Bird Treaty Act</a> (MBTA) had protected migratory bird species, which are in decline in the US, by allowing the DOI to fine industries that failed to take proper precautions to protect migratory birds. For example, <a href="https://www.fws.gov/birds/bird-enthusiasts/threats-to-birds/entrapment-entanglement-drowning.php#:~:text=An%20estimated%20500%2C000%20to%201,trays%2C%20and%201%25%20spills." target="_blank" rel="noopener noreferrer">not placing proper netting over oil pits</a>, which can result in the death of migratory birds. The rule, however, was reinterpreted by the prior administration such that industries could only be fined if bird deaths were "intentional" and not if they occurred incidentally due to a lack of precautions.</p><p>The prior administration, in its final days, also <a href="https://www.motherjones.com/environment/2021/03/endangered-species-recovery-interior-deb-haaland/" target="_blank" rel="noopener noreferrer">eliminated protections for the northern spotted owl</a>, which is currently listed by the Fish and Wildlife Service (FWS) as a threatened species. More than 3 million acres of the owl's habitat were removed from protection to pave way for timber harvesting. Susan Jane Brown, a staff attorney at the Western Environmental Law Center, <a href="https://www.nytimes.com/2021/03/02/climate/biden-interior-department-haaland.html" target="_blank" rel="noopener noreferrer">stated that she had received</a> "…several calls from wildlife biologists who are in tears who said, 'Did you know this is happening? The bird won't survive this."</p><p>The Biden administration, following the best available science, has delayed the implementation of both rules.</p><p><strong>Restoring Public Lands</strong></p><p>In 2017, two national monuments, Bears Ears and Grand Staircase-Escalante of Utah, <a href="https://www.nytimes.com/2017/12/04/us/trump-bears-ears.html" target="_blank" rel="noopener noreferrer">were reduced in size by some two million acres</a>, the largest reduction of federal land protection in our nation's history. Later, <a href="https://www.nytimes.com/2018/03/02/climate/bears-ears-national-monument.html" target="_blank" rel="noopener noreferrer">internal emails at the DOI</a> would show that these actions were not a product of following the best available science, and were instead guided by a push to exploit oil and natural gas deposits within the boundaries of the protected land. In particular, the decision did not consider the archaeological importance of the protected lands or their cultural heritage. Sidelining these facets of this decision is likely what <a href="https://www.motherjones.com/environment/2021/02/biden-orders-review-of-trumps-assaults-on-americas-natural-treasures/?utm_source=twitter&utm_campaign=naytev&utm_medium=social" target="_blank" rel="noopener noreferrer">prompted a review of the reductions</a> by the Biden administration.</p>
Bringing Science Back Across the Administration<p>Beyond the Interior department, the Biden administration has taken quick steps to bring science back to the forefront of decisionmaking across the federal government. In January, President Biden signed a <a href="https://www.whitehouse.gov/briefing-room/presidential-actions/2021/01/27/memorandum-on-restoring-trust-in-government-through-scientific-integrity-and-evidence-based-policymaking/" target="_blank" rel="noopener noreferrer">presidential memo</a> to strengthen scientific integrity and evidence-based decisionmaking. The memo, among many other positive steps for science, has initiated a review process on scientific integrity policies that should be finalized toward the end of the year. Given the <a href="https://www.ucsusa.org/resources/attacks-on-science" target="_blank" rel="noopener noreferrer">unprecedented number of times we documented political interference in science-based decision-making processes</a> over the past four years, such a review, and the subsequent recommendations arising from it, are clearly warranted.</p><p>The Biden administration also has formed multiple scientific advisory groups to help make choices informed by the best available science to protect public health and our environment. This includes advisory groups on critical issues such as <a href="https://www.whitehouse.gov/briefing-room/presidential-actions/2021/01/27/memorandum-on-restoring-trust-in-government-through-scientific-integrity-and-evidence-based-policymaking/" target="_blank" rel="noopener noreferrer">scientific integrity</a>, <a href="https://www.whitehouse.gov/briefing-room/press-briefings/2021/02/10/president-biden-announces-members-of-the-biden-harris-administration-covid-19-health-equity-task-force/" target="_blank" rel="noopener noreferrer">COVID-19</a>, and <a href="https://www.americanprogress.org/issues/green/reports/2021/02/04/495397/mapping-environmental-justice-biden-harris-administration/" target="_blank" rel="noopener noreferrer">environmental justice</a>. The administration also is moving quickly to <a href="https://www.npr.org/sections/biden-transition-updates/2020/12/17/938092644/biden-to-pick-north-carolina-regulator-michael-regan-to-lead-epa" target="_blank" rel="noopener noreferrer">appoint qualified leaders</a> at science-based agencies and has asked the heads of agencies to expeditiously establish scientific integrity officials and chief science officers.</p><p>In addition to rescinding the secretarial order at DOI, the Biden administration has also rescinded several other anti-science actions taken over the past four years. Among the <a href="https://www.whitehouse.gov/briefing-room/presidential-actions/2021/02/24/executive-order-on-the-revocation-of-certain-presidential-actions/" target="_blank" rel="noopener noreferrer">many anti-science executive orders reversed by President Biden are </a>an order that directed agencies to arbitrarily cut their advisory committees by one-third and another that required agencies to cut two regulations for every new regulation they issued.</p><p>There has been a lot of progress for science-based decisionmaking over the past six weeks, with more expected as qualified individuals are appointed to head science-based agencies. And yet we know through our research that <a href="https://www.sciencepolicyjournal.org/uploads/5/4/3/4/5434385/berman_emily__carter_jacob.pdf" target="_blank" rel="noopener noreferrer">every administration has politicized science-based decisionmaking to some extent</a>.</p><p>We will continue to watch, demand, and ensure that science guides the critical decisions being made by the Biden administration. Our health, our environment, and our safety depend on it.</p><p><em><a href="https://blog.ucsusa.org/author/jacob-carter#.YED_bRNKjt0" target="_blank">Jacob Carter</a> is a research scientist for the Center for Science and Democracy at the Union of Concerned Scientists.</em></p><p><em>Reposted with permission from the <em><a href="https://blog.ucsusa.org/jacob-carter/science-wins-at-the-interior-department" target="_blank">Union of Concerned Scientists</a>.</em></em></p>
At first glance, you wouldn't think avocados and almonds could harm bees; but a closer look at how these popular crops are produced reveals their potentially detrimental effect on pollinators.
Migratory beekeeping involves trucking millions of bees across the U.S. to pollinate different crops, including avocados and almonds. Timothy Paule II / Pexels / CC0<p>According to <a href="https://www.fromthegrapevine.com/israeli-kitchen/beekeeping-how-to-keep-bees" target="_blank">From the Grapevine</a>, American avocados also fully depend on bees' pollination to produce fruit, so farmers have turned to migratory beekeeping as well to fill the void left by wild populations.</p><p>U.S. farmers have become reliant upon the practice, but migratory beekeeping has been called exploitative and harmful to bees. <a href="https://www.cnn.com/2019/05/10/health/avocado-almond-vegan-partner/index.html" target="_blank">CNN</a> reported that commercial beekeeping may injure or kill bees and that transporting them to pollinate crops appears to negatively affect their health and lifespan. Because the honeybees are forced to gather pollen and nectar from a single, monoculture crop — the one they've been brought in to pollinate — they are deprived of their normal diet, which is more diverse and nourishing as it's comprised of a variety of pollens and nectars, Scientific American reported.</p><p>Scientific American added how getting shuttled from crop to crop and field to field across the country boomerangs the bees between feast and famine, especially once the blooms they were brought in to fertilize end.</p><p>Plus, the artificial mass influx of bees guarantees spreading viruses, mites and fungi between the insects as they collide in midair and crawl over each other in their hives, Scientific American reported. According to CNN, some researchers argue that this explains why so many bees die each winter, and even why entire hives suddenly die off in a phenomenon called colony collapse disorder.</p>
Avocado and almond crops depend on bees for proper pollination. FRANK MERIÑO / Pexels / CC0<p>Salazar and other Columbian beekeepers described "scooping up piles of dead bees" year after year since the avocado and citrus booms began, according to Phys.org. Many have opted to salvage what partial colonies survive and move away from agricultural areas.</p><p>The future of pollinators and the crops they help create is uncertain. According to the United Nations, nearly half of insect pollinators, particularly bees and butterflies, risk global extinction, Phys.org reported. Their decline already has cascading consequences for the economy and beyond. Roughly 1.4 billion jobs and three-quarters of all crops around the world depend on bees and other pollinators for free fertilization services worth billions of dollars, Phys.org noted. Losing wild and native bees could <a href="https://www.ecowatch.com/wild-bees-crop-shortage-2646849232.html" target="_self">trigger food security issues</a>.</p><p>Salazar, the beekeeper, warned Phys.org, "The bee is a bioindicator. If bees are dying, what other insects beneficial to the environment... are dying?"</p>
Six major U.S. electricity utilities will collaborate to build a massive EV charging network across 16 states, they announced Tuesday.
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