420.30 parts per million (ppm) CO2 in air 26-Jan-2022 https://t.co/kUgI1WKg1U correction to 26-Jan-2022 โ Keeling_Curve (@Keeling_curve) January 27, 2022 Wikipedia:…
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420.30 parts per million (ppm) CO2 in air 26-Jan-2022 https://t.co/kUgI1WKg1U correction to 26-Jan-2022 โ Keeling_Curve (@Keeling_curve) January 27, 2022 Wikipedia:…