And?
There's this delusion that the climate was perfect when CO2 was 350 parts per million or less. Bill McKibben, an alarmist supreme, even has a website devoted to the concept. McKibben is regularly cited. Apparently we need to get back this magic number* and then the climate will be perfect again. No floods, droughts, superstorms, cyclones, hurricanes, prostitution** or anything bad happened when CO2 levels were at this figure or lower.
* Seemingly a number plucked out of thin air, hence 'magic.'
** Yes, the US Democrats are promoting this in the Congress at the moment.