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“The core components of the president’s climate action plan should therefore remain intact, regardless of how the Supreme Court resolves this case,” said Jonas Monast, director of the climate and energy program at Duke University.

Leaders in the environmental community celebrated the fact that the high court refused to hear challenges to EPA’s broader power to limit greenhouse gas emissions.

“The court rejected pleas by big polluters and a small group of states to review the EPA’s authority to limit greenhouse gas emissions from vehicles and other sources when they endanger public health and welfare,” said David Doniger, director of policy at the Natural Resources Defense Council, a leading environmental group and frequent defender of EPA actions.

Republican-led states, such as Virginia, Alaska, Texas and others, pushed the court to take a look at the EPA’s actions and authority. The U.S. Chamber of Commerce, American Petroleum Institute, American Chemistry Council, National Association of Home Builders and other organizations also supported a Supreme Court review.