The Keeling Curve and 40 years of blah blah blah.

420.30 parts per million (ppm) CO2 in air 26-Jan-2022 https://t.co/kUgI1WKg1U correction to 26-Jan-2022 — Keeling_Curve (@Keeling_curve) January 27, 2022 Wikipedia: The Keeling Curve is a graph of the accumulation of carbon dioxide in the Earth’s atmosphere based on continuous measurements taken at the Mauna Loa Observatory on the island of Hawaii from 1958 to the present day. The curve is named for the … Continue reading The Keeling Curve and 40 years of blah blah blah.