Reverse Climate Change?

[Immersiveunreality]

Mnementh said:

Immersiveunreality said:

Fast change did also happen before and was mostly invoked by massive vulcanic eruptions,releases of big amount gasses ,changes in jetstreams and ocean currents. 

But i agree we most likely have a big impact on the current state and must do what we can to lessen our footprint as a species on this earth if we want to keep this an environment we would like to enjoy for the coming thousand years.

Such changes as you describe only had local changes (local can be a whole continent in this context, but still not the whole earth), and it often was temporary.

The Earth has likely been fully enveloped in ice and snow before, you should know that there were several ice ages and the one our ancestors survived was one of the smaller. Damn if we had another snowball earth we would have never existed. When a megavolcano erupts it can spew it ashes so high that it envelops the whole planet and blocks sunlight and that is what causes cooling on a global scale.