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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.

Cooling 254
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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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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.

Ozone 249
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Back in Black: Creating positive changes by focusing on a short-lived pollutant

HumanNature

2011), and the World Health Organization has recommended evaluating a separate health standard for black carbon exposure independent of other particle concentration measurements (World Health Organization 2012). AMAP Assessment 2015: Black Carbon and Ozone as Arctic Climate Forcers.” Arctic Council. June 25, 2020. link] Brook Robert D.,

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EPA’s Cross-State Air Pollution Rule Will Have A Dramatic Impact on Texas and Louisiana

The Energy Law Blog

Emissions reductions will take effect quickly, starting January 1, 2012 for SO2 and annual NOx reductions, and May 1, 2012 for ozone season (May-September) NOx reductions. Texas power plants must meet the January 1, 2012 deadline for SO2 and annual NOx emissions, and the May 1 deadline for ozone season NOx emissions.

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Federal Courts Need to Allow the EPA to Clear the Air

Vermont Law

Every year, about 200,000 Americans die from smog, which is a mix of ozone and fine particulates (PM. The Clean Air Act (CAA) regulates smog, setting National Ambient Air Quality Standards (NAAQS) for ozone and PM. Many cities in the Northeast fail ozone and PM. In 2012, in. and ozone NAAQS in any other state.

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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.