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Why Were 2023 and 2024 So Hot?

Union of Concerned Scientists

Scientists are sounding the alarm because this warming is shockingly bigbigger than what we would have expected given the long-term warming trend from fossil fuel-caused climate change. Meanwhile, sharply cutting our use of fossil fuels is the best way to limit carbon dioxide (CO 2 ) emissions, the primary driver of climate change.

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Don’t Believe the Lies: Five Facts to Consider as the UN’s COP27 Comes to a Close

Union of Concerned Scientists

Union of Concerned Scientists’ (UCS) research shows that top fossil fuel producers’ emissions are responsible for as much as half of global surface temperature increase. Updated analysis from 2020 shows that emissions traced to the 88 largest carbon producers contributed approximately 60 percent?of

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COP28 Global Methane Pledge Efforts Still Not Enough

Union of Concerned Scientists

The pledge is a voluntary agreement to reduce global methane emissions by 30 percent below 2020 levels by 2030; however, methane levels keep going up and we are woefully off track for meeting this goal. Compared to carbon dioxide (CO2), methane doesn’t linger for long in the atmosphere after being emitted.

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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, but it inevitably brings forth a mish-mash of half-remembered, inappropriate or out-of-date comparisons between the impacts of carbon dioxide and methane.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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Sea Level Rise is Already Threatening Communities

Union of Concerned Scientists

The primary cause of accelerating sea level rise is human activity As people burn fossil fuels and emit heat-trapping gases like carbon dioxide, our atmosphere and our oceans warm up. First, we don’t know how much more carbon dioxide, methane, and other heat-trapping gases humanity will emit in the coming decades.

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COP27 Global Methane Pledge Efforts Are Not Enough

Union of Concerned Scientists

The pledge is a voluntary agreement to reduce global methane emissions by 30 percent below 2020 levels by 2030. It is 80 times stronger than carbon dioxide (CO2) at trapping heat on short timescales. Methane emissions come from two main sources : fossil fuels and agriculture—primarily animal-based agriculture.

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Another Historic Climate Court Ruling in the Netherlands

Legal Planet

Now the same district court has gone further, again in favor of environmental groups but now against Royal Dutch Shell (“Shell”) , the world’s largest non-state-owned fossil fuel company. gigatons CO 2 equivalent in 2020, about that of Japan. That final “Scope 3” source is by far the greatest: 1.4