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So then what caused the prior ice ages and following warming spells, spanning hundreds of millions of years? Or were things different that time around?
by jackhack 8y ago
So then what caused the prior ice ages and following warming spells, spanning hundreds of millions of years? Or were things different that time around?
- poooogles 8y agoMilankovitch cycles combined with other geological events (think Lake Agassiz flooding into the Ocean) are what domainate natural climate variability.
- kaybe 8y agoWe don't really know yet. It seems to be connected with the sun and CO2 variation, but it is not clear what drives that variation. Today we drive the variation, and into regions that haven't been seen for a looong time, so things are indeed different. It's interesting that the collapse of an ice age seems to happen very fast, within a few hundreds of years, so fast changes are definitely possible. (It's good to research this since an ice age would suck majorly for us too - and we have suppressed the next one by now.)