So the earth has warmed and cooled for thousands of years. What caused the other warm periods in our history?It's as accurate as data that old can be. That's not my fucking point. When the weatherman tells you they've got a new rainfall record for this day in Austin, does he mean back to the fucking Cretaceous? No. On the subject of temperature, the "historical record" goes back to about 1850 for the US and Europe.
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