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UC-San Diego: Annual Carbon Dioxide Peak Passes Another Milestone
June 06, 2025
LA JOLLA, California, June 6 (TNSrep) -- The University of California San Diego campus issued the following news:

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Annual Carbon Dioxide Peak Passes Another Milestone

Monthly Keeling Curve average exceeded 430 parts per million in May

By Robert Monroe

For the first time, the seasonal peak of carbon dioxide concentrations in the atmosphere exceeded 430 parts per million (ppm) at NOAA's Mauna Loa Observatory on Hawaii, sci . . .

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