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EPA Will Reconsider the Ozone NAAQS — What Is An Adequate Margin of Safety, Anyway?

Law and Environment

On Friday, EPA announced that it was reconsidering its 2020 decision to leave the National Ambient Air Quality Standards for ozone unchanged. However, EPA stated that it: will reconsider the decision to retain the ozone NAAQS in a manner that adheres to rigorous standards of scientific integrity. Still whistling in the wind , I fear.

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Improving EPA’s Latest Ozone Transport Rule

Acoel

The agency’s air quality modeling indicates that most areas would receive an ozone reduction of less than 0.1 These air quality impacts are minimal compared with the major ozone reductions resulting from the 1998 SIP Call, which resulted in more than 80,000 megawatts of coal capacity being retrofitted with SCRs. ppb by 2025.

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What Happens When the EPA Technical Staff Disagrees with the Clean Air Science Advisory Committee?

Law and Environment

Last week, the EPA Clean Air Science Advisory Committee provided EPA its review of EPA’s Policy Assessment for the Reconsideration of the National Ambient Air Quality Standard for ozone. Instead, CASAC recommends a significantly lower ozone NAAQS of 55-60 ppb. first appeared on Law and the Environment.

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News Flash! International Cooperation on the Environment Remains Possible

Law and Environment

Today, the New York Times reported that a recent assessment shows that the world is on track to reach pre-1980 levels of upper atmosphere ozone by roughly 2040. International Cooperation on the Environment Remains Possible first appeared on Law and the Environment. We sure could use some more of it. The post News Flash!

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First Arrest of a Greenhouse Gas Smuggler Made in U.S.

Scientific American

A California resident faces charges under a 2020 law that seeks to curb powerful planet-warming and ozone-depleting hydrofluorocarbons

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State Air Regulations Can Go Above and Beyond National Standards 

Legal Planet

States and local air quality regulators have the legal authority to set particulate matter (PM), ozone, and nitrogen oxides (NOx) emissions standards and adopt regulations for these pollutants when they are already in attainment of the national ambient air quality standards ( NAAQS ) set by the U.S.

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What If We Succeed?

Legal Planet

Succeeding in the climate arena will also show that human beings can cooperate to address global issues, just as we did in protecting the ozone layer and eliminating smallpox. It’s already become clear that this isn’t just a matter of strengthening traditional international institutions or laws.