The Iowa Supreme Court affirmed a lower court ruling that upheld the Iowa Utilities Board's approval of a 170-turbine wind project in northwest Iowa. Landowners argued that the project was located at a "single site" and thus should have required a certificate of public convenience, use, and necessit...

A district court granted in part summary judgment against EPA for failure to implement its 2016 Emission Guidelines and Compliance Times for Municipal Solid Waste Landfills. Eight states argued that the Agency failed to implement and enforce the guidelines by (1) failing to approve or disapprove exi...

The D.C. Circuit denied downwind states' petition challenging EPA's refusal to expand the Northeast Ozone Transport Region, which consists of states required by the Agency to enact tight restrictions on pollutants that contribute to ozone that drifts across state lines. The downwind states argued th...

The D.C. Circuit granted hydrofluorocarbon (HFC) manufacturers' petitions to review a 2016 EPA rule that rendered certain HFCs unacceptable for various uses in aerosols, motor vehicle air conditioners, commercial refrigerators, and foams. The court found that it was bound by a previous ruling that s...