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Global sea level rose about 17 centimeters (6.7 inches) in the last century.
The rate in the last decade, however, is nearly double that of the last century.
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That one struck me as odd. The same climate scientists that are, uh, consensing, say that there hasn't been warming during the last decade.
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Both the extent and thickness of Arctic sea ice has declined rapidly over the last several decades.
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The extent and thickness of Antarctic sea ice increased in the same time frame, although over the last decade it decreased. This stuff is hard.
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Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa
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25000 years ago the glaciers reached 100 miles north of where I sit (near Philadelphia); they have been retreating a long time, creating the geography of NY state and eastern Canada.
Here is why that's bad news. To reduce co2 production to 1950 levels would mean cutting to about a third of 2010's global energy usage. But it's worse than that. The energy usage of 1950 supported 2.5 Billion people; the 2010 level supports 7 Billion people. So to return to 1950 quickly will mean tremendous amounts of poverty and death, as well as global warfare over disappearing resources.