Just in: Atmospheric carbon dioxide levels jump again. Annual increase in Keeling Curve peak is one of the largest on record. Get the details: NOAAResearch
peaks in the Northern Hemisphere. That is an increase of 3.0 ppm over May 2022, and represents the fourth-largest annual increases in the peak of thein NOAA’s record. Scientists at Scripps, which maintains an independent record, calculated a May monthly average of 423.78 ppm , also a 3.0 ppm increase over their May 2022 average.
This graph shows the full record of monthly mean carbon dioxide measured at Mauna Loa Observatory, Hawaii. The carbon dioxide data on Mauna Loa constitute the longest record of direct measurements of CO2 in the atmosphere. They were started by C. David Keeling of the Scripps Institution of Oceanography in March of 1958 at the NOAA Weather Station on Mauna Loa volcano. NOAA started its own CO2 measurements in May of 1974, and they have run in parallel with those made by Scripps since then.
which changes the chemistry of seawater, leading to lower dissolved oxygen, and interferes with the growth of some marine organisms.a temporary sampling site atop the nearby Mauna Kea volcano, The Mauna Loa data, together with measurements from sampling stations around the world, are incorporated by NOAA’s Global Monitoring Laboratory into the
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Atmospheric CO2 now 50% higher than pre-industrial level -NOAACarbon dioxide levels as measured atop a Hawaiian volcano extended their record-breaking rise in 2023, reaching a level more than 50% higher than at the onset of the industrial era, U.S. scientists reported on Monday.
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