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The Keeling Curve

The Keeling Curve: Watch It!

Keeling's Curve has been called one of the most important scientific works of the 20th century

Scripps CO2 measurements at Mauna Loa have been supported for many years by the U.S. Department of Energy (DOE), and have more recently been supplemented by Earth Networks, a technology company collaborating with Scripps to expand the global GHG monitoring network. Support for website development was provided in part by the National Science Foundation (NSF).

2022 - https://education.nationalgeographic.org/resource/keeling-curve

Year by Year, Measure and Monitor CO2 in the Atmosphere

• https://keelingcurve.ucsd.edu/

• https://keelingcurve.ucsd.edu/category/keeling-curve-history/

• https://keelingcurve.ucsd.edu/the-state-of-climate/

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2020 CO2: Metric Checking

February 10, 2020 / 416.08 ppm

• https://www.esrl.noaa.gov/gmd/ccgg/trends/monthly.html

• https://www.bloomberg.com/graphics/carbon-clock/

RISING EMISSIONS DRIVE GREENHOUSE GAS INDEX INCREASES

• https://research.noaa.gov/article/ArtMID/587/ArticleID/2455/RISING-EMISSIONS-DRIVE-GREENHOUSE-GAS-INDEX-INCREASE

May 11, 2019 / 415.26 ppm

According to data from the Mauna Loa Observatory in Hawaii, the concentration of CO2 in the atmosphere is over 415 parts per million (ppm)... far higher than at any point in the last 800,000 years, since before the evolution of homo sapiens.

The Carbon Clock is Ticking

April 19: 413.86 ppm

April 18: 413.43 ppm

April 17: 413.63 ppm

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CO2 Levels Now in the Weather Reports

• https://www.esrl.noaa.gov/gmd/ccgg/trends/index.html

• https://www.esrl.noaa.gov/gmd/ccgg/trends/monthly.html

• https://www.esrl.noaa.gov/gmd/ccgg/trends/full.html

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