Clean Air Act

Supreme Court RoundUP: Pivotal Cases for the Clean Air Act

How greenhouse gases and Best Available Control Technology could shape the regulatory landscape—and the environment.

Two cases involving traditional pollutants and climate change are before the court. In addition to questions about the EPA’s regulatory power, both cases raise critical threshold “jurisdictional” questions about the courts’ role in addressing these issues.

Life Along the Potomac

What federal regulators should do to ensure security, reliability, and cleaner air in our nation’s capital.

The District of Columbia Public Service Commission successfully has used two little known provisions in the Federal Power Act (FPA) to prevent an aging generating plant crucial to the national capital region’s reliability from being abruptly shut down by Virginia’s environmental regulators. In the end, the immediate threat to the region’s reliability was obviated while the environmental concerns associated with the plant were not ignored. The action resulted in a model for how federal energy regulators and environmental regulators can address similar problems in the future.

Wind and the Environment: The EPA's Tech Divide

Does the Clean Air Act require the agency to consider the most low-emission coal plant technologies in permitting new plants?

Why doesn’t its interpretation of the Clean Air Act consider the most low-emission coal plant technologies?

Focus on LNG Siting: A State Perspective

Congress revamps LNG and storage, giving broad new powers to FERC. Why the Feds still must consult with local authorities.

A major objective of the Energy Policy Act of 2005 (EPACT) is to counter the worsened conditions in the natural-gas market that began in 2000 and are expected to continue over the next several years—namely, tight natural-gas supplies and high, volatile gas prices caused by a distinct shift in the supply-demand balance. Any noticeable reductions in gas prices that might be effectuated by the act will have little impact on natural-gas prices for a number of years.

EPA's Big Bet on Green Trading

Environmental Emissions: The cost to power markets of the Clean Air Interstate Rule depends on the ability to trade mercury.

The decision to limit mercury provides cover for utilities reluctant to spend on controlling NOx and SO2, while boosting other companies

Mercury: Much Ado About Nothing?

How the Clean Air Mercury Rule will affect coal prices.

The Clean Air Mercury Rule impacts new and existing coal-fired electric generating plants through a market-based cap-and-trade program similar to the EPA’s highly successful Acid Rain Program. The first phase of the program in 2010 reduces mercury emissions to 38 tons. The second phase goes into action in 2018 with a final mercury emissions cap of 15 tons. The key question is: what extent will the new rule reduce coal’s dominance in the electric generation market?

The EPA Speaks Out: The Clean Air Interstate Rule Explained

The Environmental Protection Agency reviews how the multi-pollutant control concept is to work.

Currently, 132 areas do not meet the new National Ambient Air Quality Standards for fine particles or ozone, affecting some 160 million people, or 57 percent of the U.S. population. What efforts are under way by the EPA to bring these areas into compliance?

Guns, Butter, or Green?

Utilities will face stark tradeoffs in meeting the next round of emissions controls.

Some utility execs gasp at the shear breadth of environmental proposals being bandied about during the past few weeks. Even the environmentalists are calling "historical" the extent to which different kinds of emissions will be regulated.

Coal Gasification Gets Real

The technology works, but public policy will dictate its future.

The future of integrated gasification combined-cycle (IGCC) power plants depends on public support, but environmental and market factors are helping IGCC look like a winning technology for the future.