ESS104H1 Lecture Notes - Lecture 10: Top, International Paderborn Computer Chess Championship, Human Impact On The Environment

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No, not in the last 20 thousand years. In this case there is no ice, no ice in sea, mountains, polls. The sea even at the polls is too hot for ice. Ice houses are divided up in two: glacials (when there is lots of ice) and interglacial (some ice but not a lot. ) It"s still cold enough to have ice in mtn tops, we"re not in a glacial period. We"re in the holocene, our current interglacial period. Interesting thing about ice houses: flip back and forth between glacial and interglacial. The one we"re in has flipped about 54 times. Movies were talking about earth being in a comfortable setting- it was within a good zone. Ghg (greenhouse gases) and sst (sea surface temp) Earth"s history over the last 4. 5 billion years. Things to notice temperature has varied between cold and warm house; mostly in warm house. We have been around far less than 1% in.

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