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Re, What caused this - natural variation, or the cave men...

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birdman29

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16/09/17

14:01

Post #: 27264417
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Originally posted by oldngrey ↑

I have visited the Finger Lakes district of upper New York state several times and am always astounded by the fact that the area was covered by mile deep ice 12,000 years ago. By 10,000 years ago all this ice had melted. What caused this - natural variation, or the cave men burning coal to keep warm?

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Re, What caused this - natural variation, or the cave men burning coal to keep warm?
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