SME
Grade 12 Science · Problem type
The CO₂ record at Mauna Loa
Use this for “How fast did CO₂ rise each decade, and is the rise speeding up?”
Record and look
317
326
339
354
370
390
414
1960
1970
1980
1990
2000
2010
2020
1960
1970
1980
1990
2000
2010
2020
CO₂ (ppm)
317
326
339
354
370
390
414
CO₂ rises every decade, and faster each time: about 9 ppm in the 1960s and 24 ppm in the 2010s.
Tap a bar at the height you want.
Assumptions
•
Yearly means from the air on Mauna Loa, Hawaii, far from cities, rounded to whole ppm.
•
ppm means parts per million: molecules of CO₂ in every million molecules of air.
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