Carbon dioxide levels reach historic high as Joe Biden calls world leaders to climate talks
Saturday April 10, 2021 – 22:02 EST
Mauna Loa ObservatoryÂ measured a record CO2 concentration of 421 parts per million last weekend.
Carbon dioxide levels in the atmosphere reached a milestone 421 parts per million last weekend, the highest concentration in 3.6 million years according to the .
“It’s halfway now between the pre-industrial level of CO2 in the atmosphere [280 parts per million] and a doubling of CO2 in the atmosphere. So that’s quite profound,” said Professor Andy Pitman, the Director of the ARC Centre of…