Bump for later reading.
In the first place, the earth's climate has never been stable. I have known since the Thor Hyerdahl expedition in 1948 that the Humbold Current in the Pacific Ocean periodically reverses itself for reasons poorly understood. When this happens it produces massive rain in some areas and massive drouth in other areas. The earth has undergone ice ages and whatever long before the industrial revolution and even the bare existence of man.
Basically, the environmental movement and its parallels are being used as vehivles for passive-aggressive attacks upon the United States and similar civilizations, and to impose world Marxist concepts.