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On September 21, 2018, the U.S. Court of Appeals for the District of Columbia Circuit issued an expedited mandate to the U.S. Environmental Protection Agency (EPA), forcing the agency to reinstate...

Emissions offset systems have become a favored method of containing the compliance costs of capand-trade systems.

In a widely anticipated announcement made at the commencement of the Leaders Summit on Climate, President Biden committed the United States to a 50-52 percent reduction in greenhouse gas (GHG)...

New York City may have reached the end of the road in its efforts to curb emissions from the city's ubiquitous taxis...

This week, the Federal Highway Administration issued a Noticed of Proposed Rulemaking to promulgate performance measures to be used in evaluating federal funding of transportation projects.

The decision is not really surprising, because EPA had failed to justify a number of the decisions that it made.

On January 30, 2024, several business organizations filed a complaint in federal court in the Central District of California challenging California's Senate Bills 253 and 261 as violating the

Washington, D.C. (May 12, 2021) - In late April 2021, the Environmental Protection Agency's (EPA) Office of Enforcement and Compliance Assurance

On October 14, 2020, the California Air Resources Board (CARB) issued a letter to light-, medium-, and heavy-duty vehicle and engine manufacturers.

On April 29, 2015, California’s Governor Jerry Brown issued an executive order to set a new interim target for reducing the state’s emissions of greenhouse gases (GHGs) to 40 percent below 1990 levels by 2030.

Environmental pollution is worsening in a number of areas, yet many manufacturers in China are implementing some of the most innovative and effective programs.

ISO New England has just released its Electric Generator Air Emissions Report for 2011.

Last fall, the District Court for the Middle District of Pennsylvania affirmed EPA’s TMDL for the Chesapeake Bay.

In 2011, the National Parks Conservation Association sued EPA for failure to enforce the regional haze requirements of the Clean Air Act.

On January 19, 2021, a three-judge panel of the U.S. Court of Appeals for the D.C. Circuit in a per curiam opinion vacated the Trump Administration's Affordable Clean Energy Rule (ACE Rule).

On December 3, 2018, the Supreme Court of the United States issued an order requesting the Solicitor General to weigh in on a case related to the legal status of some types of groundwater.

Most notably, in two court decisions last week, courts ordered the State of Washington and the government of the Netherlands to take more aggressive action against climate change.

Most people other than Andrew Wheeler and the Trump Administration Clean Air Science Advisory Committee know that exposure even to low levels of PM2.5 causes increased morbidity and mortality.