Antarctica is home to Earth’s largest ice mass, which unlike the Arctic remains frozen year round. But a new satellite-based study in the journal Geophysical Research Letters shows that atop the coastal Langhovde Glacier in East Antarctica’s Dronning Maud Land, large numbers of meltwater lakes have been forming.
The study suggests that the lakes—nearly 8,000 of them—appeared in the summer months between 2000 and 2013. Like lakes that have formed from the meltwater of ice sheets in areas such as Greenland, those in East Antarctica may affect rates and patterns of ice melt, ice flow and ice shelf disintegration.
“What we find is that the appearance of these lakes, unsurprisingly, is correlated directly with the air temperature in the region, and so the maximum number of lakes, and the total area of the lakes, as well as the depth of the lakes, all of these things peak when the air temperatures peak,” said Stewart Jamieson, a glaciologist at Durham University in the U.K. and one of the study’s authors.
The concern is that the lakes’ meltwater will drain into the underlying ice, causing the ice sheet to weaken. The long-term effects are unknown, the authors say.
“We do not think that the lakes on Langhovde Glacier are at present affecting the glacier, but it will be important to monitor these in the future to see how they evolve with surface air temperature changes,” said lead study author Emily Langley of Durham University in the U.K.
Natural Gas Emissions to Edge Out Coal Emissions This Year
In its latest Short-Term Energy Outlook, released last week, the U.S. Energy Information Administration (EIA) projects that for the first time since 1972 energy-associated carbon dioxide (CO2) emissions from natural gas will surpass those from coal. Although natural gas is less carbon-intensive than coal, its consumption has increased while coal consumption has decreased, leading to what the EIA expects will be 10 percent greater energy-related CO2 emissions from natural gas than from coal in 2016.
The EIA estimates that this year natural gas will fuel 34 percent of U.S. electricity generation, compared with 30 percent for coal. Last year, natural gas generated slightly less than 33 percent of electricity, and coal generated slightly more than 33 percent.
The EIA also noted that annual U.S. carbon intensity rates have been falling since 2005, in part because of increased consumption of low- or zero-carbon electricity from nuclear plants and renewables. Along with the decrease in coal consumption, the increase in non-fossil fuel consumption has reduced U.S. total carbon intensity from 60 MMmtCO2/quad Btu in 2005 to 54 MMmtCO2/quad Btu in 2015.
But the EIA’s emissions numbers do not reflect emissions of methane, a more potent greenhouse gas released by gas drilling and transport operations. The extent of methane emissions from oil and gas production and distribution is uncertain, complicating the climate impacts of switching from coal to gas. Once those emissions total more than 4 percent of total gas production, according to a study cited in Utility Dive, they begin to negate the climactic benefits of gas over coal.
Obama Uses Anniversary to Remind Country of Climate Change’s Threat to National Parks
As the United States marks the centennial of the National Park Service this week, its parks are being widely celebrated for their natural grandeur. But President Obama used the milestone as a reminder of the threat climate change poses to the parks in a video released Saturday.
“As president, I’m proud to have built upon America’s tradition of conservation. We’ve protected more than 265 million acres of public lands and waters—more than any administration in history,” said Obama.
“As we look ahead, the threat of climate change means that protecting our public lands and waters is more important than ever. Rising temperatures could mean no more glaciers in Glacier National Park. No more Joshua Trees in Joshua Tree National Park. Rising seas could destroy vital ecosystems in the Everglades, even threaten Ellis Island and the Statue of Liberty.”
The National Park Service warns that today’s “rapid climate change challenges national parks in ways we’ve never seen before. Glaciers are retreating at an unprecedented rate, increasingly destructive storms threaten cultural resources and park facilities, habitat is disrupted—the list goes on.”
How is the National Park Service planning for climate change? The Atlantic reports that although parks have been slow to adapt their management practices, they are taking steps to cut emissions and educate the public about climate change and its effects. It reports that the visitors’ center at California’s Pinnacles National Park runs on electricity from solar panels, passenger vehicles are banned in Zion National Park during the summer, and at Golden Gate National Recreation Area, several beach restoration projects are in the works due to erosion caused partly by sea-level rise.
The Climate Post offers a rundown of the week in climate and energy news. It is produced each Thursday by Duke University’s Nicholas Institute for Environmental Policy Solutions.
Surveys conducted by Yale University and George Mason University suggest that 17 percent of Americans view climate change as an alarming threat and that another 28 percent are concerned about climate change but view it as a distant threat.
The subject has become highly contentious since 1997, when then Vice President Gore helped broker an international treaty, the Kyoto Protocol, to reduce heat-trapping gases from the burning of coal, oil and gas. The U.S. later withdrew from the treaty.
“And at that moment the two parties began to divide,” said Anthony Leiserowitz, director of the Yale Program on Climate Change Communication, who was involved in the surveys. “They begin to split and go farther and farther and farther apart until we reach today’s environment where climate change is now one of the most polarized issues in America.”
Climate change will again be in the spotlight as a group of climate scientists gather in Switzerland to discuss a United Nation’s report expected to detail the impacts of 1.5 degrees Celsius of warming. In Paris last year, some 190 countries pledged to hold the global average temperature increase to “well below” 2 degrees Celsius above pre-industrial levels and to pursue efforts to limit that increase to 1.5 degrees Celsius. But there are scientific questions not only about the costs and benefits of keeping warming to 1.5 degrees Celsius, but also about how to remain on a 1.5 C pathway. The Huffington Post shows what the Paris Climate Agreement is up against in a series of charts.
What we do know is this decade is the critical decade for action.
“The risks of future climate change—to our economy, society and environment—are serious, and grow rapidly with each degree of further temperature rise,” the Australian government’s Climate Commission wrote in a report. “Minimising these risks requires rapid, deep and ongoing reductions to global greenhouse gas emissions. We must begin now if we are to decarbonize our economy and move to clean energy sources by 2050. This decade is the critical decade.”
And the Host City of the Summer 2084 Games Is . . .
A study published in The Lancet says that only three North American cities—San Francisco, Calgary, Vancouver—will have a climate sufficiently cool and stable to host the Summer Olympic games in 70 years. The authors, who considered only cities in the northern hemisphere, where 90 percent of the world’s population lives, and only those with a population greater than 600,000 in 2012, the lower limit of host cities since World War II, said that climate change would make most of the 645 cities unsafe venues due to rising temperatures and humidity caused by climate change.
“You could take a risk, and plan your Olympics, and maybe not get the hot days you expect, but that would be a big risk when there are many billions of dollars at stake,” said Kirk Smith, a researcher at the University of California–Berkeley’s School of Public Health and the lead author of the study.
To measure the suitability of future Olympics sites, the researchers used climate change projections and a “wetbulb” globe temperature—a measurement reflecting the combination of humidity, heat radiation, temperature, and wind. They picked 2085 as a target date and as their target event what they considered the Olympics’ most physically challenging outdoor endurance event: the marathon. They selected 82.5 degrees Fahrenheit as the “high-risk” temperature for marathoners.
“The findings indicate that by 2085, Istanbul, Madrid, Rome, Paris and Budapest—all cities that are or were in contention for either the 2020 or 2024 Summer Olympics—would be unfit to host the games,” the authors said. “Tokyo, the city that has secured the 2020 summer Olympiad, would also be too hot to ensure athlete safety, should these projections come to pass.”
Which cities would be viable hosts? None in Latin America or Africa, 25 in western Europe, 5 in eastern Europe and Asia, and 3 in North America.
“If the world’s most elite athletes need to be protected from climate change, what about the rest of us?” the study concludes.
One of the most startling implications of the research is that temperatures will be too high for laboring outdoors, where half the world’s population works.
Truck Emissions Limits Set
New emissions requirements affecting heavy- and medium-duty vehicles, which represent only about 5 percent of total highway traffic but account for 20 percent of transportation-related fuel consumption and carbon emissions, were announced this week. The requirements call for as much as a 25 percent reduction in carbon emissions and fuel consumption in certain models by 2027. It also requires annual increases in efficiency of 2.5% from 2021-2027 for heavy-duty pickup trucks and vans.
“The standards promote a new generation of cleaner, more fuel-efficient trucks by encouraging the development and employment of new and advanced cost-effective technologies through model year 2027,” said Gina McCarthy, administrator of the U.S. Environmental Protection Agency (EPA), which developed the new rules in conjunction with the National Highway Traffic Safety Administration. “These standards are ambitious and achievable, and they will help ensure the American trucking industry continues to drive our economy — and at the same time protect our planet.”
Official say the new requirements are expected to cut 1.1 billion metric tons of carbon emissions through the next decade and represent a global benchmark for reducing vehicle-exhaust pollutants linked to climate change.
The Climate Post offers a rundown of the week in climate and energy news. It is produced each Thursday by Duke University’s Nicholas Institute for Environmental Policy Solutions.
A new study in the journal Scientific Reports suggests that the evidence to pinpoint expected acceleration of sea-level rise due to climate change was hiding behind the effects of a 1991 eruption of Mount Pinatubo. This eruption sent tens of millions of tons of sulphur dioxide into the stratosphere and may have masked the effects of industrial pollution on global sea levels during the two decades since.
“What we’ve shown is that sea level acceleration is real, and it continues to be going on, it’s ongoing, and we understand why you don’t see it in the short satellite record,” said John Fasullo, who conducted the research along with scientists from the University of Colorado in Boulder and Old Dominion University. The data from satellite observations that scientists have used to track sea-level rise began in 1993, two years after the eruption, which temporarily cooled the planet. These data indicated that the rate of sea-level rise was holding fairly steady at about 3 millimeters per year.
“When we used climate model runs designed to remove the effect of the Pinatubo eruption, we saw the rate of sea level rise accelerating in our simulations,” Fasullo said. “Now that the impacts of Pinatubo have faded, this acceleration should become evident in the satellite measurements in the coming decade, barring another major volcanic eruption.”
Climate Change Extending Mosquito Season, Raising Zika Risk
A portion of last week’s opening Olympic ceremonies in Rio de Janeiro focused squarely on climate change. A video offered a glimpse of climate change effects and an accompanying graphic showing the incursion of sea-level rise on cities around the world if the average global temperature were to increase 3–4 degrees. Fitting perhaps, suggested The Washington Post, given warming could help accelerate outbreaks of mosquito-borne illnesses such as Zika, which has spread from Brazil to Florida, leading to serious birth defects.
Although data confirming a formal link between climate change and the rise and spread of the virus are lacking, Climate Central reports that the initial Brazilian outbreak of Zika was “aided by a drought driven by El Niño, and by higher temperatures caused by longer-term weather cycles and by rising levels of greenhouse gas pollution.” Climate Central’s own research recently showed that in three quarters of major U.S. cities warming temperatures have lengthened the mosquito season—the number of days hot and humid enough for mosquitoes to be biting. According to that research, the ten cities with the biggest increase in the length of the mosquito season over the last 30 years were Baltimore, Maryland; Durham, North Carolina; Minneapolis, Minnesota; Myrtle Beach, South Carolina; Raleigh, North Carolina; Portland, Maine; St. Louis, Missouri; Pittsburgh, Pennsylvania; Worcester, Massachusetts; and Albany, New York.
For Rio, Zika is not the only health risk potentially increased by longer, rainy summers.
Ratifying the Paris Agreement
In Paris last year, more than 190 countries pledged to hold the global average temperature increase to “well below” 2 degrees Celsius above pre-industrial levels and to pursue efforts to limit that increase to 1.5 degrees Celsius. But keeping within that 1.5 degree Celsius target, The Guardian reports, will be extremely difficult.
An analysis by the Ministry of Foreign Affairs of the Republic of the Marshall Islands—the third country to ratify the Paris Agreement—suggests that the agreement is nearing a critical threshold of pledges and is likely to enter into force this year or in early 2017. The agreement takes effect 30 days after at least 55 countries representing at least 55 percent of the world’s greenhouse gas emissions ratify it. The Marshall Islands analysis indicates 58 countries together representing nearly 54 percent of global emissions have either ratified or pledged to work toward ratification of the Paris Agreement by the end of the year.
So far, 22 nations accounting for 1.08 percent of emissions have formally ratified the deal, according to the United Nations.
The Climate Post offers a rundown of the week in climate and energy news. It is produced each Thursday by Duke University’s Nicholas Institute for Environmental Policy Solutions.
By 2030, half of the energy produced in the state of New York will come from renewables, according to a new policy adopted Monday by the state’s public service commission. The move is expected to reduce greenhouse gas emissions by 40 percent from 1990 levels (80 percent by 2050) and to attract billions in clean energy investment.
“New York has taken bold action to become a national leader in the clean energy economy and is taking concrete, cost-effective steps today to safeguard this state’s environment for decades to come,” said New York Gov. Andrew Cuomo. “This Clean Energy Standard shows you can generate the power necessary for supporting the modern economy while combatting climate change. Make no mistake, this is a very real threat that continues to grow by the day and I urge all other states to join us in this fight for our very future.”
The plan calls for New York to retain its nuclear reactors—though The Washington Post reports that those facilities don’t count as part of the 50 percent renewables target. According to New York regulators, doing so might cost $965 million over two years but could lead to net benefits of $4 billion due to avoided carbon dioxide emissions and air pollution. While supporters of this provision applaud New York’s effort to retain its emissions-free nuclear generation, opponents are likely to challenge the nuclear subsidies on the grounds they are discriminatory, hurt markets, and intrude on federal authority.
New York is not the first state to announce an ambitious greenhouse gas reduction target. In April 2015, California announced it planned to cut those emissions by 40 percent below 1990 levels in the same time frame with renewables increases. Like California, New York plans to phase in its renewables increase; 31 percent of its energy is to come from renewables by 2021 and 50 percent by 2030. Those targets are meant to give utilities and clean energy companies time to develop their business models.
White House to Federal Agencies: Consider Climate Change Impacts
In an action with broad implications for thousands of projects, including energy and mineral development on public lands, natural gas import and export facilities, and transportation projects, the Obama administration issued final guidance on how federal agencies should consider greenhouse gas emissions and climate change impacts when conducting reviews under the National Environmental Policy Act (NEPA) (subscription).
“Focused and effective consideration of climate change in NEPA reviews will allow agencies to improve the quality of their decisions,” the guidance states. “Identifying important interactions between a changing climate and the environmental impacts from a proposed action can help Federal agencies and other decision makers identify practicable opportunities to reduce greenhouse gas emissions, improve environmental outcomes, and contribute to safeguarding communities and their infrastructure against the effects of extreme weather events and other climate-related impacts.”
The guidance, the product of a six-year effort by the White House Council on Environmental Quality, advises agencies to quantify projected greenhouse gas emissions of proposed federal actions whenever the necessary methodologies and data are available. It also encourages them to draw on their experience and expertise to determine the appropriate level and extent of quantitative or qualitative analysis required to comply with NEPA and to consider alternatives that would increase the climate-change resilience of the action and affected communities.
“From the public standpoint, we are now going to know what all of our decisions add up to in terms of impacting climate change,” said Christy Goldfuss, managing director of the Council on Environmental Quality. “You can think of all the different federal decisions, and how they all add up. We have numbers where we can actually say, ‘this is a huge decision, given the amount of greenhouse gases coming out of it.’ And that gives the public a chance to really weigh in on decision-making.”
Several media outlets pointed out that because the White House guidance is not a regulation, agencies are not legally bound to follow it.
Clean Power Plan Analysis: National Costs Low, State Costs Varied
Wednesday marked one year since the U.S. Environmental Protection Agency formally rolled out the Clean Power Plan, which aims to reduce carbon emissions from power plants. Even with the February stay by the U.S. Supreme Court, which halted implementation of the plan pending resolution of legal challenges, some say the plan is having an impact while others are finding more reason to explore the legality of the rule (subscription).
Should the rule survive judicial review, a new paper by the Nicholas Institute for Environmental Policy Solutions uses the Nicholas Institute’s Dynamic Integrated Economy/Energy/Emissions Model to evaluate Clean Power Plan impacts on the U.S. generation mix, emissions, and industry costs. It indicates that industry trends are likely to make Clean Power Plan compliance relatively inexpensive, with cost increases of 0.1 to 1.0 percent. But policy costs can vary across states, which might lead to a patchwork of policies that, although in their own best interests, could impose additional costs nationally.
“The answer is not the same for everyone in terms of what’s going to be the least-cost way for a particular state to approach this policy,” said lead author and Nicholas Institute Senior Economist Martin Ross. “Nationally, it would make the most sense to have a broadly coordinated policy where you can take advantage of the usual economic [tools] to spread the cost reductions around and pick up the most cost-effective sources for reducing emissions.”
Similar findings were presented at a conference of the National Association of Regulatory Utility Commissioners. Because of lower-than-expected natural gas prices, renewable power, and extended federal tax credits for that power, the country as a whole is set to meet the Clean Power Plan’s early goals, reports ClimateWire.
In March, the Guardian issued an election-related call-out to online readers in the United States, asking them to identify the “one issue that affects your life you wish the presidential candidates were discussing more.” The results are in. Of the 1,385 respondents from all 50 states, one in five expressed discontent about lack of discussion of climate change, an issue described in vivid terms, such as “cataclysmic” and “slow-motion apocalypse.” Respondents expressed greatest concern about sea-level rise and decreasing food and water security.
“Climate change is the common denominator for us all regardless of gender, creed or political affiliation,” said Sarah Owen in a video response to the survey.
Between parties, there’s divide on the topic of climate change. Eleven House Republicans who are trying to change their party’s attitude about climate change and four of five Republican senators with a record of supporting action on it skipped this week’s GOP convention, where delegates approved a party platform that rejected the Paris Agreement, a carbon tax, and other action on climate change and that downplayed use of renewable energy.
“Climate change is far from this nation’s most pressing national security issue. This is the triumph of extremism over common sense, and Congress must stop it,” reads the platform.
Just how ambitious the Democratic Party will be in attempting to reduce carbon emissions—particularly, its stance on a carbon tax—remains to be seen. The full platform committee will hammer out details in Orlando on Friday and Saturday.
In an interview with ClimateWire, U.S. Special Envoy for Climate Change Jonathan Pershing suggested that the U.S. presidential election will have less impact on American efforts to combat climate change than a host of other factors ranging from new technologies and appliance standards to political support for renewable energy tax credits.
“To me, there’s more likely to be continuity no matter who’s in office,” Pershing said.
Projecting Clean Power Plan Costs, Impacts
The Clean Power Plan aims to reduce carbon emissions from existing power plants. Assuming the rule survives judicial review and is implemented, the U.S. Energy Information Administration (EIA) projects a reduction of power sector emissions of about 35 percent by 2030.
Assuming the Clean Power plan is upheld, EIA projects emissions outcome and electricity generation mix for multiple state implementation strategies—that is, pursuit of mass-based emissions targets or rate-based emissions targets. EIA projects higher prices if emissions allocations under a mass-based regime are given to generators rather than load-serving entities, but “price effects are similar in the [mass] and CPP rate cases where the average electricity price from 2022 through 2030 in both cases is 2 percent higher than in the No CPP case, and 3 percent higher on average from 2030 through 2040,” analysts wrote.
As the EIA data suggests, utilities and other power producers are likely to be in different positions if the rule moves forward—some will benefit from the rule, and others will face costs to comply, which can lead to monetary transfers among different producers and consumers of electricity. A new policy brief by Duke University’s Nicholas Institute for Environmental Policy Solutions builds on this understanding by exploring the distributional impacts of choosing rate-based and mass-based approaches to comply with the Clean Power Plan. It finds that states adopting a mass-based compliance approach can use allowance allocation to largely control monetary transfers within a state. States adopting a rate-based compliance approach lack this direct control mechanism.
Each state’s system of electricity regulation and any changes in wholesale prices for electricity due to the policy in regional electricity markets will play a major role in determining how cost distribution and potential transfers play out, the authors said.
Study: Warm Water, Not Air, Accelerating Glacier Retreat on Western Antarctic Peninsula
A study published in the journal Science found that ocean warming, rather than atmospheric warming, is the primary cause of retreat of 90 percent of the 674 glaciers on the western Antarctic Peninsula. Because the peninsula’s glaciers are among the main contributors to sea-level rise, the study suggests that better understanding of how and why they’re changing will increase the accuracy of ice-loss predictions.
“Scientists know that ocean warming is affecting large glaciers elsewhere on the continent, but thought that atmospheric temperatures were the primary cause of all glacier changes on the Peninsula,” said lead author Alison Cook of Swansea University. “We now know that’s not the case.”
The scientists came to that conclusion after linking a distinct pattern of melt from north to south on the peninsula with a pattern of temperatures at mid-ocean depths that mirrored the melt. At the southern end of the western side of the peninsula, they found that a welling up of warm Circumpolar Deep Water wears away the fronts of glaciers. At the northern end of the peninsula, the fronts of glaciers are more stable because they terminate at colder waters that come from a different source.
“Our results are key for making predictions of ice loss in response to ocean warming in this region,” Cook said. “The Antarctic Peninsula is one of the largest current contributors to sea-level rise, and the glaciers here are highly sensitive, so [they] are key indicators of how the ice will respond to future changes.”
Natural fluctuations specifically related to the Interdecadal Pacific Oscillation (IPO) are responsible for the increased growth of Antarctic sea ice, according to a new study in the journal Nature Geoscience. A negative shift in the IPO has caused cooler-than-average sea surface temperatures in the Eastern Pacific, allowing Antarctic sea ice to expand since 2000.
“The climate we experience during any given decade is some combination of naturally occurring variability and the planet’s response to increasing greenhouse gases,” said National Center for Atmospheric Research scientist Gerald Meehl, lead author of the study. “It’s never all one or the other, but the combination, that is important to understand.”
But what’s new in the latest study, writes Chris Mooney in The Washington Post, “is the suggestion that this negative IPO phase had consequences that stretched all the way to the Southern Ocean waters surrounding Antarctica—and that this, in turn, explains why most climate models didn’t predict the observed growth of Antarctic sea ice.”
Study researchers suspect that the IPO began switching to a positive phase in 2014 and that ice in the region may shrink in the next decade.
Study Points to Human Influence on Changes in Earth’s Biggest Body of Warm Water
A study in Science Advances has provided the first quantitative attribution of human influences on and natural contributions to warming of the Indo-Pacific warm pool (IPWP), Earth’s largest region of warm sea surface temperatures and one “fundamental to global atmospheric circulation and the hydrological cycle.”
To “fingerprint” anthropogenic forcings and natural causes of substantial IPWP warming and expansion, researchers at Pohang University of Science and Technology and their international colleagues paired observations with multiple climate model simulations integrated with and without human influences. They found that the IPWP had warmed by 0.3 Celsius and increased in size by about a third over the last 60 years primarily due to an increase in human-made greenhouse gases.
About 12 to 18 percent of the warming has been due to natural variability in the ocean, but the remaining portion is due to the greenhouse gas increase, according to study co-author Seung-Ki Min of Pohang University in South Korea.
“We have more energy available from the hotter ocean,” said Min. “That means the atmosphere will be enhanced to transport more energy from the tropical ocean to the high latitude zone.”
The findings indicate that future ocean warming could increase storm activity over East Asia and strengthen monsoons over South Asia.
“This wasn’t entirely surprising. We’ve long suspected climate change to be behind the changes, but no one had yet proven it,” said Evan Weller, lead author, noting that what was surprising is that the western portion of the pool, near India, is expanding more than the eastern part in the Pacific. “We don’t really know why. We’ll try to figure that out next.”
Report: United States Is Oil Reserves Leader
The United States holds the largest share of the world’s oil reserves—264 billion barrels to Russia’s 256 billion and Saudi Arabia’s 212 billion, according to Rystad Energy, a Norwegian industry research group that tracks proved and probable reserves, discoveries and undiscovered fields. More than 50 percent of remaining oil reserves, it claims, are unconventional shale oil. Texas alone holds more than 60 billion barrels of shale oil.
On the basis of a three-year analysis of 60,000 fields worldwide, the group estimates global reserves to be 2,092 billion barrels—roughly 70 times the current production rate of some 30 billion barrels of crude oil per year.
“This data confirms that there is a relatively limited amount of recoverable oil left on the planet,” the report says. “With the global car-park possibly doubling from 1 billion to 2 billion cars over the next 30 years, it becomes very clear that oil alone cannot satisfy the growing need for individual transport.”
At the North American Leaders Summit on Wednesday, Mexico, Canada and the United States pledged to generate 50 percent of their energy from clean sources by 2025. The joint commitment by the three countries, according to White House Adviser Brian Deese, is “an aggressive goal” but one that is “achievable continent-wide.”
“The Paris Agreement was a turning point for our planet, representing unprecedented accord on the urgent need to take action to combat climate change through innovation and deployment of low-carbon solutions,” the leaders said in a statement. “North America has the capacity, resources and the moral imperative to show strong leadership building on the Paris Agreement and promoting its early entry into force. We recognize that our highly integrated economies and energy systems afford a tremendous opportunity to harness growth in our continuing transition to a clean energy economy. Our actions to align climate and energy policies will protect human health and help level the playing field for our businesses, households, and workers.”
Last year, 32 percent of North America’s overall power came from clean energy sources. The White House cited renewable energy, nuclear plants, and carbon capture and storage technology as possible avenues to achieving the 50 percent goal in the next nine years. In addition, measures will be taken to reduce greenhouse gases in the economies of the three countries through deployment of clean vehicles in government fleets, conduct research to accelerate clean energy innovation, support cross-border transmission projects, and examine adding more renewables to the power grid with a joint study of renewables opportunities and impacts
Mexico will join Canada and the United States in reducing methane emissions by 40 to 45 percent by 2025. Reduction strategies are planned for the agricultural and waste management sectors.
Could Brexit Complicate EU Effort on Paris Agreement?
Although the full effects of the United Kingdom’s decision, last week, to leave the European Union (EU)—the so-called Brexit—are still unclear, some think it could have far-reaching effects on Europe’s commitment to last year’s landmark Paris climate agreement to hold the global average temperature increase to “well below” 2 degrees Celsius above pre-industrial levels. The impending departure of the EU’s second largest emitter and a leading advocate of increased EU ambition ahead of the Paris Agreement complicates Brussels’ plan to divide up the EU’s pledge to cut emissions at least 40 percent compared with 1990 levels by 2030 (subscription). The United Kingdom would have contributed significantly to meeting that pledge—under a 2008 domestic law it is on a pathway to cut its emissions 57 percent by 2030.
Assuming the United Kingdom stays in the Paris Agreement, its contribution would likely be based on its Climate Change Act. To abandon its current emissions reductions commitments would mean repealing the act.
For now, the United Kingdom remains a supporter of the Paris Agreement, and in the short term no changes are slated in its domestic emissions reduction targets for 2030 and 2050. But the United Nations says that, once the United Kingdom leaves the EU, a “recalibration” of the Paris Agreement will be necessary.
“While I think the U.K’s role in dealing with a warming planet may have been made harder by the decision last Thursday, our commitment to dealing with it has not gone away,” said Amber Rudd, Britain’s Energy Secretary. “Climate change has not been downgraded as a threat. It remains one of the most serious long-term risks to our economic and national security.”
Studies Find Pink Snow Contributing to Climate Change; Humans Changing Vegetation Growth
A study in the journal Nature Communications links the pink-hued snow in higher altitudes in the Arctic to climate-change-related increases in algae blooms that are causing melting in the region at an unprecedented pace. The presence of red algae reduces the snow’s ability to reflect light instead of absorbing it as heat (albedo), reducing albedo by as much as 13 percent in one season.
“The algae need liquid water in order to bloom,” said the University of Leeds’ Stefanie Lutz, lead author of the study. “Therefore the melting of snow and ice surfaces controls the abundance of the algae. The more melting, the more algae. With temperatures rising globally, the snow algae phenomenon will likely also increase leading to an even higher bio-albedo effect.”
It is unclear how widespread these algae blooms can become, but based on her observations, Lutz said “a conservative estimate would be 50 percent of the snow surface on a glacier [will be covered by the algae] at the end of a melt season.”
A separate study by NASA, which analyzed more than 87,000 satellite images, found extensive greening of land in Canada and Alaska while these area’s Boreal regions were browning as a result of climate change.
“Whereas temperature limited tundra regions have almost ubiquitously increased productivity with warming temperatures … trees in the boreal system do not respond well to high temperatures,” said Scott Goetz, deputy director and senior scientist at the Woods Hole Research Center. “It’s not what most people typically think of as drought, related to soil moisture, but the effect is the same. Boreal trees are like living organisms anywhere, they will do what they need to do to survive… It’s all finely tuned by centuries of evolutionary adaptation.”
“Our findings reveal that the observed greening record is consistent with an assumption of anthropogenic forcings, where greenhouse gases play a dominant role, but is not consistent with simulations that include only natural forcings and internal climate variability,” the authors write.
Coral in every major reef region across the world has already experienced bleaching, and the National Oceanic and Atmospheric Administration (NOAA) forecasts that temperatures in much of the Pacific, Atlantic and Indian oceans could reach a point at which significant bleaching of corals is present this summer. NOAA’s Coral Reef Watch suggests that the greatest threat is to reefs in Palau and the Federated States of Micronesia. All Northern Hemisphere U.S.-coral reefs are on alert for bleaching.
In a statement, NOAA said that “This third global bleaching event began in mid-2014” and is ongoing. “Global warming, coupled with intense El Nino, continues to make this the longest and most widespread coral bleaching event on record.”
Coral bleaches when it becomes damaged or diseased by rising water temperatures. Some recent studies have suggested other factors—beyond just warming water—also play a role. Over the past century, climate change has already caused global sea surface temperatures to rise by about 1 degree Celsius, pushing corals closer to their bleaching threshold.
Although the bleaching event was already the longest in recorded history and was predicted to run past the middle of the year, NOAA’s latest climate model-based forecasts suggest it will run at least through the end of 2016.
“It’s time to shift this conversation to what can be done to conserve these amazing organisms in the face of this unprecedented global bleaching event,” said Jennifer Koss, NOAA’s Coral Reef Conservation Program director. “We have boots on the ground and fins in the water to reduce local stressors. Local conservation buys us time, but it isn’t enough. Globally, we need to better understand what actions we all can take to combat the effects of climate change.”
This month, NASA launched a new, three-year project—Coral Reef Airborne Laboratory (CORAL)— to study the Pacific Oceans coral reefs by aircraft from 23,000 feet above the ocean. NASA scientists plan to map large swaths of coral in hopes of better understanding how environmental changes—including climate change, acidification, and pollution—are affecting these delicate ecosystems.
“CORAL will provide the most extensive picture to date of the condition of a large portion of the world’s coral reefs from a uniform data set,” NASA’s Jet Propulsion Lab penned in a press release. “The data will reveal trends between coral reef condition and biogeophysical forcings, both natural and those arising from human activities. With this new understanding of reef condition, we can better predict the future of this global ecosystem.”
White House Announces Energy Storage Projects
At a summit of regulators, power companies, municipalities, and energy developers on Monday, the Obama administration announced new executive actions and 33 state and private sector commitments to “accelerate the grid integration of renewable energy and storage.” Collectively, the commitments—aimed at reducing carbon emissions and increasing the resilience of the electricity grid—are expected to result in at least 1.3 gigawatts of additional storage procurement or deployment over five years and could lead to approximately $1 billion in energy storage investments.
Among the actions, are funding for microgrids in rural communities, a U.S. Department of Energy push for standardization of and increased access to energy data, and release of White House Council of Economic Advisers report on the “technical and economic considerations and opportunities” relating to the grid integration of renewables. On the private sector side, 16 developers and power companies set new storage procurement and deployment targets. Some are committing to smart water heaters, smart meters and demand response programs.
Federal programs to boost storage and microgrid capacity at federal installations and military bases may be a game changer, according to one electricity market analyst. In a research note on the commitments, reported PV Magazine, GTM Research highlighted storage deployment by the U.S. Navy for its “potential to genuinely grow the market beyond business-as-usual.”
Obama Says Climate Change a Threat to National Parks
“One of the things that binds us together is we only have one planet and climate change is probably the biggest threat—not only to natural wonders like this—but to the well-being of billions of people, coastal cities, agricultural communities that can be displaced in the span of a few decades by changes in temperatures that mean more drought, more wildfires,” Obama said during an interview with National Geographic that will air in later this summer to commemorate the National Park Service’s 100th anniversary. “Part of why it’s so important for us to raise awareness (about climate change) with the general public is: This is a solvable problem.”
He added: “Rising temperatures could mean no more glaciers at Glacier National Park. No more Joshua trees at Joshua Tree National Park.” Our changing climate, he said, could destroy vital ecosystems in the Everglades and threaten such landmarks as Ellis Island and the Statue of Liberty.
According to the National Parks Service, the park system’s many fragile ecosystems are “a testament to the reality of climate change.” They said glaciers could be completely gone from Glacier National Park by 2020, park facilities in Alaska are sinking due to thawing permafrost and archaeological sites are under threat from sea-level rise.
Yellowstone National Park, Venice, Jordan’s Wadi Rum, and Easter Island’s Rapa Nui National Park are some of the 31 natural and cultural World Heritage sites in 29 countries that are threatened by climate change according to a new report released by UNESCO, the United Nations Environment Program and the Union of Concerned Scientists. Melting glaciers, rising seas, increasing wildfires and harsher droughts could severely diminish the value of protected sites, making them unsuitable for a World Heritage designation, the report says. Climate change could eventually cause some of the sites to lose their status.
Also at risk, according to the report, is local economic development in the areas near world heritage sites. Specifically, the tourism sector is vulnerable to loss and damage to assets and attractions as well as to increasing insurance costs and safety concerns.
“The fastest growing risk to World Heritage, and one of the most under-reported by the countries that are parties to the World Heritage convention, is from climate change,” said Adam Markham, deputy director of the Climate and Energy Program at the Union of Concerned Scientists. He pointed out that climate change brings not only direct impacts but “acts as a ‘risk multiplier,’” compounding local stresses such as urbanization, agricultural expansion and pollution.
In the Galapagos Islands, threats to wildlife from tourism, invasive species and illegal fishing are exacerbated by rising seas and warming and more acidic oceans. At Stonehenge, warmer winters will likely increase numbers of burrowing animals that could undermine archaeological deposits and destabilize stonework.
“Globally, we need to better understand, monitor and address climate change threats to World Heritage sites,” said Mechtild Rössler, director of UNESCO’s World Heritage Centre. “As the report’s findings underscore, achieving the Paris Agreement’s goal of limiting global temperature rise to a level well below 2 degrees Celsius is vitally important to protecting our World Heritage for current and future generations.”
Ocean Current Affecting Temperatures in Antarctica
A new study in the journal Nature Geoscience suggests that ocean currents are slowing the warming effects on Antarctica as Arctic ice melts on the other side of the world. Warm waters in Gulf Stream cool as they flow into the North Atlantic, then sink for centuries before surfacing off the coast of Antarctica.
“With rising carbon dioxide you would expect more warming at both poles, but we only see it at one of the poles, so something else must be going on,” said Kyle Armour, lead author and University of Washington assistant professor. “We show that it’s for really simple reasons, and the ocean currents are the hero here.”
Old, deep water that’s coming up to the surface all around Antarctica—water that hasn’t come into contact with the atmosphere or experienced climate change in hundreds of years—is behind the drastic differences in the continent’s water temperature.
Using drifting floats—known as the Argo array—and climate models, the study authors tracked heat. They found that nearly 68 percent of the heat taken up by the southernmost parts of the Southern Ocean was carried north.
A separate study in the journal Remote Sensing of the Environment also attributes ocean currents, in part, to increasing Antarctica temperatures and sea ice growth. It suggests that the Southern Ocean Circumpolar current prevents warmer water from reaching the continent and that icy winds help the formation of sea ice persist.
Record Renewable Investment by Developing Countries in 2015
For the first time, emerging economies spent more on renewable energy than developed economies, according to the Renewables Global Status report prepared by the Renewable Energy Policy Network for the 21st Century (REN21). In 2015, developing countries invested $156 billion in renewables—a 19 percent increase from the previous year.
“What is truly remarkable about these results is that they were achieved at a time when fossil fuel prices were at historic lows, and renewables remained at a significant disadvantage in terms of government subsidies,” said Christine Lins, REN21’s executive secretary.
By the end of 2015, countries around the world had installed a record annual total of 147 gigawatts of renewable generating capacity—enough to meet 23.7 percent of global electricity demand. China was the leader in renewables investment, followed by the United States, Japan, the United Kingdom and India.
Just weeks before the U.S. Court of Appeals for the D.C. Circuit was scheduled to hear challenges to the U.S. Environmental Protection Agency’s (EPA) Clean Power Plan, a rule intended to limit greenhouse gas emissions from the existing fleet of fossil fuel-fired power plants, the court announced it will push the hearing back four months and hear the case before the entire court.
Originally planned for June 2 before a three-judge panel, the hearing was postponed to Sept. 27 and will now take place in front of a full bench. The rare “en banc” review is allowed by procedural rules when the case involves a question of exceptional importance. According to The Washington Post, the decision to pursue such a review appears to be on the court’s own initiative. The move to skip the customary three-panel review, as was the case in 2001’s U.S. v. Microsoft, is almost unheard of and could signal that the judges feel the issues of the case are so significant that they all must weigh in.
“The court has anticipated, obviously, the significance of whatever the panel would say and the related likelihood that it would end up en banc. They’ve basically truncated that process,” Richard Lazarus, a Harvard Law School professor, told Bloomberg BNA.
The order follows an announcement by the D.C. Circuit last year that it would hear the Clean Power Plan on an expedited schedule and a stay on implementation of the plan in February by the U.S. Supreme Court while the lower court determines its legality.
Even so, some indicate the change may actually speed up the final resolution of the case.
“It definitely shortens the time period for this to get to the Supreme Court,” said Dorsey & Whitney Attorney James Rubin (subscription). “This does show that there is recognition for the need to move this forward. It’ll speed things up to some extent.”
EPA Targets Oil and Gas Industry Methane Emissions
The EPA has taken the first-ever steps under the Clean Air Act to regulate oil and gas industry emissions of methane, announcing a new rule aimed at new or modified oil and natural gas wells. The EPA said the regulations, which the EPA proposed last year, would lower methane emissions by 510,000 short tons—the equivalent of 11 million metric tons of carbon dioxide—in 2025, the year by which the Obama administration’s goal is to reduce the sector’s methane emissions by at least 40 percent compared with 2012 levels.
The rules will require energy companies to provide pollution information to the EPA so it can regulate methane emissions from existing oil and gas wells.
To begin regulating methane leaks from existing oil and gas wells, the EPA is requiring energy companies to notify the agency about their emissions and leak-stopping technology. The information request is expected to be finalized later this year and data collection from the industry, early next year.
According to the EPA, pound for pound, the impact of methane on climate change is “more than 25 times greater than carbon dioxide over a 100-year period.”
Climate Negotiators Meet in Germany to Make Implementation Plan for Paris Agreement
Climate negotiators met in Bonn, Germany, for the first official meeting of the United Nations Framework Convention on Climate Change since the Paris Agreement last year.
A note to Bonn participants stresses the importance of shifting from negotiation to implementation of the landmark agreement—whereby more than 190 countries pledged to hold the global average temperature increase to “well below” 2 degrees Celsius above pre-industrial levels and to pursue efforts to limit that increase to 1.5 degrees Celsius. More than 175 countries have signed the agreement.
The challenge ahead, writes French Environment Minister Segolene Royal and Morocco’s Foreign Prime Minister Salaheddine Mezouar, the previous Paris COP21 president and incoming COP22 president, is to “operationalize the Paris agreement: to turn intended nationally determined contributions into public policies and investment plans for mitigation and adaptation and to deliver on our promises.”
The two-week meeting is expected to produce an agenda for the ad-hoc working group tasked with implementing the Paris Agreement.
Addressing delegates at the start of the meeting, retiring U.N. climate director Christiana Figueres said “The whole world is united in its commitment to the global goals embodied in the Paris Agreement. Now we must design the details of the path to the safe, prosperous and climate-neutral future to which we all aspire.”