which show both our current short, shallow temperature cycles and the longer term, deeper ones.
Unfortunately, because of earth wobble, our descendants will begin seeing the next long, gradual ice age, that has already started, in a few thousand years. By then they must start dramatically reducing population (not a bad idea even now) because they will need to migrate closer to the equator. There is a lot less land there and much of it is poorer quality for agriculture.
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