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- Tracking the CO2, Tracking the Atmospheric Change
2021
Mauna Loa, Hawaii - NOAA
2020
CO2 Measurements @Mauna Loa, Hawaii
• https://www.esrl.noaa.gov/gmd/ccgg/trends/
• https://www.esrl.noaa.gov/gmd/ccgg/trends/full.html
• https://scripps.ucsd.edu/programs/keelingcurve/
Highest Daily CO2 Records (by year) | Mauna Loa Observatory
Measurements are made by two independent CO2 monitoring programs (NOAA and Scripps) at the Mauna Loa Observatory in Hawaii about 3400 metres above sea level.
2019 (as of January 12, 2019)
413.45 ppm on January 12, 2019 (NOAA-ESRL)
411.14 ppm on January 7, 2019 (Scripps)
411.08 ppm on January 6, 2019 (Scripps)
2018
412.60 ppm on May 14, 2018 (Scripps)
412.45 ppm on May 14, 2018 (NOAA-ESRL)
412.37 ppm on April 23, 2018 (NOAA-ESRL)
2017
412.63 ppm on April 26, 2017 (NOAA-ESRL)
411.27 ppm on May 15, 2017 (NOAA-ESRL)
2016
409.44 ppm on April 9, 2016 (Scripps)
409.39 ppm on April 8, 2016 (Scripps)
2015
404.84 ppm on April 13, 2015 (Scripps)
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