Although there has been a significant shift with regard to climate change policy with the change of administrations, a recent decision at the United States Court of Appeals for the District of Columbia Circuit (D.C. Circuit) makes clear that the National Environmental Policy Act or NEPA, enacted in 1970, remains an important weapon for those who seek to ensure that the climate change impacts of major federal actions are considered.  On Aug. 22, 2017, the D.C. Circuit held that the Federal Energy Regulatory Commission (FERC) failed to fully examine greenhouse gas impacts related to a pipeline project because the agency’s Environmental Impact Statement (EIS) for the project failed to consider the impacts from greenhouse gas emissions from the power plants to be served by the proposed pipeline.

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