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EPA Proposes Rules on Clean Air Act Permitting for Greenhouse Gas Emissions

WASHINGTON – The U.S. Environmental Protection Agency (EPA) is proposing two rules to ensure that businesses planning to build new, large facilities or make major expansions to existing ones will be able to obtain Clean Air Act permits that address their greenhouse gas (GHG) emissions. In the spring...

NRDC challenge to EPA approval of California CAA SIP fails

California submitted a Clean Air Act State Implementation Plan to the EPA for approval. Pursuant to the "conformity rule" under 40 C.F.R. Section 93.118, the EPA conducted a review to determine whether the SIP's motor vehicle emissions budgets were adequate for transportation conformity...

Smoke from fires can travel thousands of miles impacting weather, climate, and air quality

Prior posts have noted the impact of fires in Southeast Asia on air pollution throughout the region. While it has been known for decades that large wildfires can create or enhance thunderstorm clouds, leading to what are called pyrocumulonimbus clouds ("pyroCbs"), only recently have researchers...

Let a thousand lawsuits bloom: The CAA is this week's favorite target

As noted in prior posts, EPA has proposed national standards for mercury and other toxic pollutant emissions from power plants. See http://www.epa.gov/airquality/powerplanttoxics/ . Now Guam and 25 states have filed a challenge to the regulations. The EPA is under court order to finalize the so-called...