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Clean Power Plan Goes to Court

What was scheduled to be about 3.5 hours turned into nearly seven on Tuesday as 10 judges heard oral arguments in a rare “en banc” review of the Clean Power Plan in the U.S. Court of Appeals for the District of Columbia Circuit. The controversial Clean Power Plan, based on Section 111(d) of the Clean…

Americans View of Climate Change Polarized; U.N. Targets May Be Tough to Achieve

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…

Pending Deal on Montreal Protocol Amendment Second Only to Paris Agreement

World climate leaders meeting in Vienna have laid the foundation for an amendment to the 1987 Montreal Protocol, the global treaty that phased out ozone-depleting chlorofluorocarbons (CFCs). The amendment would address climate-damaging hydrofluorocarbons (HFCs), the refrigerant chemicals that replaced CFCs but that can trap heat in the atmosphere at levels a thousand times higher than…

Clean Power Plan Court Hearing Delayed to September

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 monthsand…

Study: Half a Degree Matters

Last week more than 150 nations signed the Paris Agreement, pledging to hold the increase in the global average temperature to well below 2 degrees Celsius above pre-industrial levels and to pursue efforts to limit the temperature increase to 1.5 degrees Celsius. Now, the first comprehensive analysis of the impacts of that half centigrade difference…

Nations to Sign Paris Climate Agreement Friday

Four months after it was finalized by delegates to the Paris Climate Change Conference, the Paris Agreement will be signed by more than 100 nations on Friday. While the agreement is facially insufficient to meet its overall emissions objectives, the signing of the Paris agreement nevertheless is significant. It brings into effect the approach and…

Record Low Arctic Sea Ice Extent Points to Irreversible Changes

Scientists at the National Snow and Ice Data Center (NSIDC) said on Monday that Arctic sea ice cover of 5.607 million square miles on March 24 represented the lowest winter maximum since records began in 1979. That’s 5,000 square miles less than last year’s record low. Contributing to the ice extent loss were record high…

Study, EPA Spotlight Methane Emissions from Oil and Gas Industry

Last week, the U.S. Environmental Protection Agency (EPA) released an updated draft of its Greenhouse Gas Inventory, finding that total U.S. greenhouse gas emissions in 2014 were 6.8 billion metric tons of carbon dioxide equivalent—1 percent higher than in 2013, but 8 percent lower than the 2007 peak. The most revelatory revision: methane emissions figures…

EPA’s Clean Power Plan Faces Uncertainty

It has been more than a week since the U.S. Supreme Court issued a stay of the U.S. Environmental Protection Agency’s (EPA) Clean Power Plan, and states are now beginning to indicate how they will approach the resulting uncertainty the decision brings. Although the stay removes the September deadline to submit compliance plans to the…

Climate and Energy of Focus in Obama’s Final State of the Union

President Obama laid out four big questions the United States has to answer in his nearly hour-long final State of the Union address Tuesday night. One of those four points: How do we make technology work for us, and not against us, especially when it comes to solving urgent issues like climate change? In discussing…

Study Says Electricity Production Vulnerable to Climate Change

A new study in the journal Nature Climate Change suggests that climate-change-related water disruptions could significantly decrease electricity production by the hydropower stations and thermoelectric (nuclear, fossil-fueled, biomass-fueled) plants that account for 98 percent of production around the world. Because the plants need water to cool generators and pump power at dams, they are vulnerable to lower…

Tough Issues Linger in New Climate Deal Draft

Climate negotiators at the United Nations Climate Change Conference (COP 21) in Paris have until Friday to reach a global deal to curb greenhouse gas emissions to avoid the most serious climate change impacts. Negotiators released a new, shorter draft of that deal. The 29-page document leaves some major sticking points unresolved, including whether to…

Tougher Rules for Pollution That Crosses State Lines

The U.S. Environmental Protection Agency (EPA) on Tuesday proposed updates to its Cross-State Air Pollution Rule in response to a recent decision by the D.C. Circuit Court. The update now affects 23 states whose nitrogen oxide emissions blow into other states, increasing their ozone levels. No longer subject to the rule are South Carolina and…

Countries Position Themselves for Paris Climate Talks

In a joint statement on Monday, China and France signaled that any deal reached at the United Nations Climate Change Conference in Paris, Nov. 30–Dec. 11, should include five-year reviews of emissions reductions commitments in order to “reinforce mutual confidence and promote efficient implementation.” The two countries also called for an “ambitious and legally binding”…

Clean Power Plan Publication Triggers Wave of Challenges

The recent publication of the U.S. Environmental Protection Agency’s (EPA) Clean Power Plan in the Federal Register triggered the filing of lawsuits by dozens of states in the U.S. Court of Appeals for the District of Columbia Circuit, along with other challenges, including a petition from a U.S. Chamber of Commerce-led industry coalition for a rule…