Since the dawn of Earth volcanoes and ones under seas have been polluting gases into the atmosphere to this very day.
Temperatures have been changing since and before the ice age began. Clouds prevent us sun light and light prevents us to go cold. If there was no light, everything would be dead or animals apdat to darkness like the bats an moths. The termperature would plumet and seas will freeze. Human polluton is only a small amount of gases in the atmosphere, i reckon only 2% is our waste. The rest is volcanic activity and explosions caused by weather.
The weather has become bigger and stronger since end of the ice age because the ice was not right for the planet.
So why people blaming us which we only produce 0.1 every 3 years polluton(my theory) its our fault? We man, ape have only been on Earth about 1 hour. Volcanoes are the biggest polluters and allways have been.
End.