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As Earth Sizzles, CO2 in the Atmosphere Accelerates Faster Than Ever | Discover Magazinehttps://www.discovermagazine.com/environment/as-earth-sizzles-co2-in-the-atmosphere-accelerates-faster-than-everNot only is CO2 now at the highest level in millions of years, it is also rising faster than ever,” says Ralph Keeling, Director of the CO2 Program at Scripps, quoted in a release. “Each year achieves a higher maximum due to fossil-fuel burning, which releases pollution in the form of carbon dioxide into the atmosphere. Fossil fuel pollution just keeps building up, much like trash in a landfill.”
Measured atop Hawaii’s Mauna Loa, CO2 reached its annual high in May at a little less than 427 parts per million. That’s 2.9 ppm greather than in May 2023. “When combined with 2023’s increase of 3.0 ppm, the period from 2022 to 2024 has seen the largest two-year jump in the May peak in the NOAA record,” according to the agency.
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If you’re wondering how the level of CO2 in the atmosphere can still be accelerating even as our emissions of CO2 to the atmosphere are slowing and perhaps even leveling off, that’s a great question! Part of the answer is likely to be the strong El Niño that began in June 2023 and is only now nearly gone. The climate phenomenon limits uptake of atmospheric CO2 by land ecosystems, according to John Miller, a carbon cycle scientist with NOAA’s Global Monitoring Laboratory.