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Jd20001 t1_j52q11g wrote

Reply to comment by Embarrassed-Mouse-49 in TIL researchers found that the global average temperature from 19,000 to 23,000 years ago was about 46 degrees Fahrenheit. That’s about 11 degrees Fahrenheit (6 degrees Celsius) colder than the global average temperature of the 20th century, per a University of Michigan statement. by Embarrassed-Mouse-49

The glaciers only reached about the middle of Pennsylavania, they didn't cover everything

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Dakens2021 t1_j538inw wrote

Interestingly enough there is the hypothesized snowball Earth period which was about 700 million years ago where it is thought the average temperature for the planet was between -50C.

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il_duomino t1_j547qep wrote

Between -50c and what????

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zoratoune t1_j548na0 wrote

Yea you can't be doing that start and not

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rdrckcrous t1_j53644i wrote

But if Pennsylvania was 11 degrees cooler, most people wouldn't intuitively think that means glaciers

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certain_people t1_j53855q wrote

Global average was that much cooler. Not everywhere cools by the same amount. The further away from the equator, approximately, the more intense the cooling.

Same thing in reverse now. Global average up 1°C since 1880, but parts of the Arctic are over 4°C warmer.

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