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In a Blow to Public Health, EPA Delays Strengthening Ozone Standards

Union of Concerned Scientists

Despite clear recommendations from its own science advisors, the US Environmental Protection Agency (EPA) announced over the summer that it will delay its scheduled process to consider strengthening public health standards for ground-level ozone pollution. The stakes over ground-level ozone standard are high.

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Evolving Air Quality Standards

Legal Planet

I am focusing on what are called the primary standards, which are health-based, and on two key pollutants, particulates and ozone, which have the greatest current importance. Ozone Pollution (Smog) Ozone standards are measured in parts per million (ppm) in the air. Also, the measures themselves have shifted. ppm in 2015.

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CMIP6: Not-so-sudden stratospheric cooling

Real Climate

2012) described the issues as ‘mysterious’, but efforts to better correct the record for non-climatic effects soon bore fruit, and the ‘mystery’ became history ( Maycock et al., That means the greenhouse substances are basically just CO2 and ozone, and they absorb in quite different parts of the spectrum.

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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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The Problems with the SCOTUS ‘Good Neighbor’ Arguments

Legal Planet

Herzog (former Emmett/Frankel Fellow at UCLA School of Law 2012-2016) and Sean H. When EPA strengthened the national ozone standard in 2015 based upon updated scientific understanding of ozone’s health harms, it triggered States’ obligation to develop Good Neighbor plans.

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The Rise and Decline of Coal Mining Jobs, 1970-2022

Acoel

EPA regulations under the Clean Air Act for controlling mercury, sulfur dioxide, ozone and other pollutants have contributed to the employment decline. Job losses have accelerated since 2012 with the development of low-cost fracking for natural gas.

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FTC Seeks Public Input on Update to Green Guides for Environmental Claims

Greenbuilding Law

The Green Guides were first issued in 1992 and were revised in 1996, 1998, and 2012. The Need for Additional Guidance: The FTC also seeks comment on the need for additional guidance regarding claims such as “compostable,” “degradable,” ozone-friendly,” “organic,” and “sustainable,” as well as those regarding energy use and energy efficiency.