Pintohoo,
what catastrophic effects?
Less than 1 deg c rise (IPCC figures ) since 1950.
Rainfall the same globally .
No increases or frequency of hurricanes over the last 20 years.
Infinitesimal sea levle rises.
pola r bear thriving .
CO2 increases by satellite measurement show 10-15 % increase in global area greening of planet .
Crop yields up . Before Covid world standard of living improving .
Here only in the desperate left press