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Sierra Club v. EPA

The D.C. Circuit held that EPA did not violate the CAA by modifying, without notice and comment, its prior understandings of how to measure a proposed transportation project’s impact on ambient levels of particulate matter. In 2006, EPA revised “hot spot" regulations for fine particulate matter....

Sierra Club v. Zinke

A district court held that BLM violated the APA when it postponed compliance with Obama-era greenhouse gas emission rules. Several states and tribal citizen groups brought suit against BLM when it published a notice in the Federal Register postponing compliance dates for certain sections of the Wast...

Columbia Riverkeeper v. Cowlitz City

The Washington state Shorelines Hearing Board denied plans to build a methanol refinery on the Columbia River because the plans failed to adequately consider greenhouse gas emissions. A manufacturing company proposed to manufacture methanol from natural gas supplied by a lateral pipeline, with the m...

Center for Biological Diversity v. EPA

A district court ordered EPA to issue infrastructure requirements for the 2012 fine particulate matter NAAQS for five states within 90 days. In 2015, New Jersey, Pennsylvania, Washington, Illinois, Massachusetts, and Rhode Island missed their deadlines to present compliance plans for the 2012 fine p...