- Details
- Last Updated: 13 June 2020 13 June 2020
Averages |
NOAA MLO |
Scripps MLO |
Daily CO2 |
418.32 ppm June 1, 2020
|
417.91 ppm April 9, 2020 |
Weekly CO2 |
417.43 ppm May 24-30, 2020
|
415.08 ppm May 12-18, 2019 data |
Monthly CO2 |
416.21 ppm April 2020
|
417.16 ppm May 2020 |
Yearly CO2 |
411.44 ppm 2019 |
411.49 ppm 2019 |
Marking the latest CO2 records is not an act of celebration, but of bearing witness.
The achievements are a sobering reminder of the chemical changes that we humans are collectively making to the atmosphere--changes with disruptive impacts that affect every living being in the biosphere. When a new record is reached, it is is marked here with an invitation for people to take notice, reflect on the transformation that is going in the wrong direction, and resolve to reverse these trends.
Reversing the trend is not something that any one person can achieve on their own. But individuals and groups can build on this CO2 Earth initiative by taking steps that help make the CO2 indicator for planetary health as ubiqutious as our stock market updates and weather reports. Consider sharing the CO2 Earth updates and records with people and groups that are part of your information-sharing circle.
A New Daily High Each Year
The graphic below from Teem Earth partner @NumberLens presents NOAA CO2 readings since 1999 to show the seasonal peak for daily CO2 readings at Mauna Loa. It shows that CO2 levels usually peak in April or May, a phenomena discovered by Charles David Keeling in the late 1950s and early 1960s when he began what became the world's longest-running, high preceision record of direct measurements of CO2 in background air.
*Atmospheric CO2 is higher now than at any time in the past 200,000 years of human history. In fact, studies of past CO2 levels have accumulated evidence of CO2 levels being lower than 400 ppm for the past 23 million years. That makes the CO2 records on this page the highest in human history plus a period that's a hundred times short 200,000-year time that homo sapiens have graced the earth. The higher levels of this planet-heating gas is just one part of the problem. The other is the speed of the changes, more than a hundred times pre-human times, and faster than many ecosystems can adapt to.
Related Links
Science Daily Jun 2020 | Today's atmospheric CO2 levels greater than 23 million-year record
Geology 2020 | A 23 m.y. record of low atmospheric CO2
CO2 Earth | Daily CO2
CO2 Earth | CO2 Proxy Data
CO2 Earth | CO2 Acceleration
Daily
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Daily MLO CO2 Records
2020 Top Daily CO2 Records (so far)
418.32 ppm June 1, 2020 - NOAA | CO2 Earth Tw | NumberLens Tw
418.12 ppm May 3, 2020 - NOAA | UNFCCC-TW | CO2 Earth Tw FB
418.03 ppm May 1, 2020 - NOAA | CO2 Earth FB TW |Turkish
417.91 ppm April 9, 2020 | Scripps TW KC-TW
416.96 ppm April 8, 2020 | NOAA TW < 417.85 ppm April 9, 2020 | NOAA TW >
416.08 ppm February 10, 2020 | NOAA FB TW GT-TW yesilgazette [@CO2_Earth tweet of Feb. 11, 2020 + retweet by @GretaThunberg]
415.79 ppm January 21, 2020 | NOAA FB TW
* Highest Scripps MLO reading in 2020 is for May 25 at 418.04 ppm CO2 | KC-Tw
2019 Top Daily CO2 Records
415.70 ppm May 15, 2019 | Scripps TW KC-TW
415.64 ppm May 15, 2019 | NOAA TW
415.50 ppm May 13, 2019 | Scripps TW KC-TW FML
415.40 ppm May 13, 2019 | NOAA TW
415.39 ppm May 12, 2019 | Scripps TW
415.27 ppm May 12, 2019 | NOAA TW
415.26 ppm May 11, 2019 | Scripps TW SA TC USN EH-TW
May 3, 2019: Tweet of May 4 record CO2 level above 415 corrected via FB TW @Keeling-TW
414.94 ppm May 1, 2019 | Scripps TW
414.88 ppm May 1, 2019 | NOAA TW Reddit
414.84 ppm March 18, 2019 | NOAA-ESRL TW
2018 Top Daily CO2 Records
412.60 ppm May 14, 2018 | Scripps TW412.45 ppm May 14, 2018 | NOAA TW
412.37 ppm April 23, 2018 | NOAA TW
2017 Top Daily CO2 Records
412.63 ppm April 26, 2017 | NOAA TW411.27 ppm May 15, 2017 | NOAA TW
2016 Top Daily CO2 Records
409.44 ppm April 9, 2016 | Scripps PBS Opening Bell409.39 ppm April 8, 2016 | Scripps Opening Bell
2015 Top Daily CO2 Records
404.84 ppm April 13, 2015 | Scripps GW
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Weekly
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Weekly CO2 Records
2020 Top Weekly CO2 Records
417.43 ppm May 24-30, 2020 | NOAA data
416.97 ppm May 17-23, 2020 | NOAA data
416.83 ppm May 3 - 9, 2020 | NOAA data
416.82 ppm April 26 - May 2, 2020 | NOAA data
416.45 ppm April 5-11, 2020 | NOAA data
415.74 ppm March 29-April 4, 2020 | NOAA data
415.52 ppm March 22-28 2020 | NOAA data NL-TW
2019 Top Weekly CO2 Records
415.39 ppm May 12-18, 2019 | NOAA data
415.08 ppm May 12-18, 2019 | Scripps data
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Monthly
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Monthly MLO CO2 Records
2020 Top Monthly CO2 Records
417.16 ppm May 2020 | Scripps data KC-Tw
416.21 ppm April 2020 | NOAA data
416.18 ppm April 2020 | Scriipps data KC-Tw
2019 Top Monthly CO2 Records
414.83 ppm May 2019 | Scripps data
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About
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About the 'CO2 Records' Page
CuratorMike McGee
Process
1. Human monitoring of data
2. Human updates to this page
3. Human tweets and posts via social media
4. Human prayer for the end of new record hights for atmospheric CO2
5. Repeat (as long as needed)
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Other Records
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Other Records
Feb. 9, 2020 | Antarctica’s first-ever recording of temperature above 20°C [Guardian]
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