"The cause of global warming is showing no signs of slowing as heat-trapping carbon dioxide in Earth’s atmosphere increased to record highs in its annual Spring peak, jumping at one of the fastest rates on record, officials announced Monday.

Carbon dioxide levels in the air are now the highest they’ve been in more than 4 million years because of the burning of oil coal and gas. The last time the air had similar amounts was during a less hospitable hothouse Earth before human civilization took root, scientists said.

The National Oceanic Atmospheric Administration announced that the carbon dioxide level measured in May in Hawaii averaged 424 parts per million. That’s 3 parts per million more than last year’s May average and 51% higher than pre-industrial levels of 280 ppm. It is one of the largest annual May-to-May increases in carbon dioxide levels on record, behind only 2016 and 2019, which had jumps of 3.7 and 3.4 parts per million."

Seth Borenstein reports for the Associated Press June 5, 2023. [2]