2020 Atmosphere Carbon Dioxide Ozone 
Real Climate
SEPTEMBER 19, 2021
, but it inevitably brings forth a mish-mash of half-remembered, inappropriate or out-of-date comparisons between the impacts of carbon dioxide and methane.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. W/m 2 for CH 4.
Real Climate
JULY 10, 2022
The fact that there is a natural greenhouse effect (that the atmosphere restricts the passage of infra-red (IR) radiation from the Earth’s surface to space) is easily deducible from; i) the mean temperature of the surface (around 15ºC) and, ii) knowing that the planet is normally close to radiative equilibrium. in IPCC TAR).
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HumanNature
MARCH 31, 2021
Guest Post By Erin Boedicker , 2020-2021 Sustainability Leadership Fellow and Ph.D. When fuels are burned to create energy in a process called combustion, black carbon along with carbon monoxide and other compounds are created because there is not enough oxygen in the atmosphere for the reaction to go to completion.
Union of Concerned Scientists
DECEMBER 12, 2023
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.
Columbia Climate Law
MAY 8, 2020
EPA of a 2015 rule barring replacement of ozone-depleting substances with hydrofluorocarbons (HFCs), which are powerful greenhouse gases. Circuit vacated the 2015 rule to the extent that it prohibited continued use of HFCs by companies that previously switched to HFCs from an ozone-depleting substance. May 1, 2020).
PA Environment Daily
NOVEMBER 11, 2022
Methane is a potent greenhouse gas that traps about 80 times as much heat as carbon dioxide, on average, over the first 20 years after it reaches the atmosphere and is responsible for approximately one third of the warming from greenhouse gases occurring today. can take in the short term to slow the rate of climate change.
Union of Concerned Scientists
MARCH 29, 2023
In 2015, when he took office as AG after stints in the Texas Legislature, he sued the Environmental Protection Agency for strengthening a standard for ground-level ozone, better known as smog. Hurricanes or no hurricanes, Mississippi AG Lynn Fitch, who took office in January 2020, takes a dim view of federal action on climate change.
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