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How Climate Change Was Won

By Ross Koningstein
Communications of the ACM, November 2023, Vol. 66 No. 11, Pages 100-ff
10.1145/3623643
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sun appears on a planet's horizon, illustration — Credit: Shutterstock.com

November 14, 2170: A special report from Hervé Ngambé, science correspondent, The Chronicle Times, Schenkel station, Mare Erythraeum, Mars

The U.S. National Oceanic and Atmospheric Administration (NOAA) announced today that for the first time since 1988, atmospheric CO₂ levels dipped below 350 parts per million. While few watch these figures now, historical records show this reality seemed impossible when humanity began taking climate change seriously in the 2020s. Thanks to some forward-thinking individuals and organizations, humanity largely avoided the worst-case 21^st century predictions for weather, sea-level rise, and other catastrophes. This retrospective examines how the climate change war was won.

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