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New Climate Research From a Year-Long Arctic Expedition Raises an Ozone Alarm in the High North

Inside Climate News

Warming of the surface of the Arctic is matched by a colder polar vortex high in the atmosphere, which is speeding the breakdown of the Earth’s shield against ultraviolet rays.

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Deciphering the ‘SPM AR6 WG1’ code

Real Climate

Another clue indicating a shortcoming is if you look at the atmospheric CO 2 -concentrations over time to see how much impact the IPCC reports have had on the real policy-makers in the world (Figure below). The cause of our changing climate is the increase in atmospheric greenhouse gas concentrations that we have released into the air.

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Viewpoint: Forty-three years of the environmental movement?

A Greener Life

In the 1960s climate change was not really a significant concern, not even amongst environmentalists – this was despite the fact that the Swedish scientist Svante Arrhenius in 1896 was the first to claim that emissions from fossil fuels might eventually result in enhanced global warming. Today that number is 420ppm and rising.

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May 2020 Updates to the Climate Case Charts

Columbia Climate Law

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. In Mexichem , the D.C.

2020 40
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Policy News: April 11, 2022

ESA

This latest report looks at mitigation — or what the world can do to stop pumping greenhouse gases into the atmosphere. It’s the third chapter in the IPCC’s mammoth sixth assessment report, part of a series of studies that summarize the state of climate science and the planet released roughly every seven years.

2022 98
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Identifying the Means to an End: The Role of the Social Cost of Carbon

Arnold Porter

The SCC is a metric that seeks to capture all of the costs that emitting a ton of carbon dioxide (or equivalent amounts of other greenhouse gases such as methane) imposes on society by contributing to climate change over the hundreds of years it remains in the atmosphere. What Are the Key Variables Affecting the SCC Amount?

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Policy News: May 28, 2021

ESA

National Oceanic and Atmospheric Administration. Climate Change Forces Brutal Choices at National Parks – The New York Times. Top Climate Scientist Blasts Government Lab After Denier Invited to Speak – Gizmodo. This includes $828 million for Biological and Environmental Research, a $75 million increase. What to Save?

2021 52