[CharlyFord]

This is confirmed by long recognized archeological findings.

During the Ordovician period (488.3–443.7 million years ago) the average CO2 level was 4200 ppm (15 times pre-industrial level) but the average temperature was only 2deg C higher. During the Ordovician period, the Earth had polar ice caps and experienced the Hirnantian glaciation. The Earth did not burn up like the alarmist have said. It was much like today.

[Ernest_at_the_Beach]

I think the Democrats are pivoting from CO2 causing Global Warming too CO2 causing ocean Acidification....

Watching CSPAN and a debate on the House floor with talk on Climate Change along with Land use policies I think...Rep Dicks of Washington State offered up an ocean Acidification argument...just short of dropped in into the narrative.