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The definitive CO2/CH4 comparison post

Real Climate

, but it inevitably brings forth a mish-mash of half-remembered, inappropriate or out-of-date comparisons between the impacts of carbon dioxide and methane. In 2020, CO 2 was at ~410 parts per million, while CH 4 was around 1870 parts per <it>billion</it> (or 1.87 Historical comparisons. Stocks and flows.

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

HumanNature

Guest Post By Erin Boedicker , 2020-2021 Sustainability Leadership Fellow and Ph.D. Figure 1: Size reference for atmospheric particles (US EPA 2016) and a general structure of freshly created black carbon. Outdoor air pollution accounts for approximately 3.7 – 4.8 million deaths globally (Cohen et al.

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U.S. Senate Hearing: Energy, Environmental Impacts Of Cryptocurrency Mining In Pennsylvania

PA Environment Daily

Despite these claims, burning waste coal is still just burning fossil fuel and results in the emissions of significant amounts of air pollution including ozone precursors, fine particulates, acid gasses, heavy metals, and vast amounts of carbon pollution.

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House Environmental Committee Sets May 1 Hearing On Cryptocurrency And Climate Change

PA Environment Daily

Despite these claims, burning waste coal is still just burning fossil fuel and results in the emissions of significant amounts of air pollution including ozone precursors, fine particulates, acid gasses, heavy metals, and vast amounts of carbon pollution.

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Ask a Scientist: Fighting Big Ag Pollution with Maps and Math

Union of Concerned Scientists

You got involved in a “waters of the United States” (WOTUS) case against the Trump administration EPA in 2020 that predated the Supreme Court ruling. SW: In 2020, the Trump administration narrowed the scope of the Clean Water Act by stripping protections from streams and wetlands.

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EPA Unveils Proposed Methane Pollution Reduction Standards Covering Oil & Gas Facilities, Including Conventional Oil & Gas Wells

PA Environment Daily

Environmental Protection Agency announced it is strengthening its proposed standards to cut methane and other harmful air pollution. The updates would provide more comprehensive requirements to reduce climate and health-harming air pollution, including from hundreds of thousands of existing oil and gas sources nationwide.

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Sabin Center Files Amicus Brief in Support of New GHG Vehicle Emissions Standards

Law Columbia

billion tons of carbon dioxide emissions by 2050. While the Clean Air Act (CAA) has been amended multiple times since 1970, this basic requirement has remained untouched. In 2020, the Trump Administration promulgated a new rule for model years 2021 through 2026 that reduced the required emissions reduction to only 1.5%