What caused the last ice age to end about 12,000 years ago?
“What caused the last ice age to end about 12,000 years ago?”
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The Earth warmed up. And there was not a single SUV, oil well, factory, or airplane anywhere on the planet at that time.
I live in Maine, and grey boulders of various sizes are everywhere; left behind all over the state when the glaciers receded.
Deep in the woods on a large parcel of land my family owns, there are boulders larger than a 2-story home. In some cases, there are trees and plants growing on these massive boulders.