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Sowinski v. Cal. Air Res. Bd.

ELR Case

The Federal Circuit held that the state of California did not infringe on an emissions trading-related patent, allowing the state's greenhouse gas emissions cap-and-trade program to continue. The plaintiff owns a U.S. patent that covers...

California Chamber of Commerce v. State Air Resources Board

ELR Case

A California Appeals Court upheld a state cap-and-trade regime against challenges from the state commerce board and affected industry players. In 2006, California passed the California Global Warming Solutions Act, which aims to reduce...

Cross-Border Constraints on Climate Change Agreements: Legal Risks in the California-Quebec Cap-and-Trade Linkage

ELR Article

As the world begins implementing the Paris Agreement, Canada and the United States remain without comprehensive greenhouse gas regimes at the federal level; most action has taken place at the subnational level. At the forefront is the...

WildEarth Guardians v. United States Environmental Protection Agency

ELR Case

The Tenth Circuit denied petitions for review challenging EPA's approval of a regional cap-and-trade program regulating sulfur dioxide (SO2) emissions to address regional haze over the Colorado Plateau, a Class I area. Under the CAA's...