Supreme Court Reaffirms EPA's Authority to Act on Climate

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Anna Oman, (301) 979-5899 or
Today, The U.S. Supreme Court issued its ruling in Utility Air Regulatory Group v. EPA, agreeing with the U.S. Environmental Protection Agency that the Clean Air Act requires many new large-scale industrial facilities to obtain construction permits limiting their emissions of greenhouse gases -- including dangerous air pollutants like carbon dioxide and methane. The ruling amends the lower court’s decision, however, by requiring that permitting for other air pollutants act as a trigger for greenhouse gas permitting. EPA retains its authority to establish nationwide standards for climate pollution for large-scale industrial facilities as proposed in its Clean Power Plan.

In response, Joanne Spalding, Senior Managing Attorney for the Sierra Club, issued the following statement:

“The Supreme Court’s ruling means that the largest new industrial facilities will need to limit their greenhouse gas emissions. The Court’s ruling that the emissions of other pollutants trigger the requirement to limit greenhouse gases means, in practice, that all of the biggest polluters will be subject to greenhouse gas limits, as they have been for the past 3 years.

About the Sierra Club
The Sierra Club is America's largest and most influential grassroots environmental organization, with more than 2.4 million members and supporters nationwide. In addition to creating opportunities for people of all ages, levels and locations to have meaningful outdoor experiences, the Sierra Club works to safeguard the health of our communities, protect wildlife, and preserve our remaining wild places through grassroots activism, public education, lobbying, and litigation. For more information, visit
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