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Politics : Formerly About Advanced Micro Devices

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To: combjelly who wrote (695529)	1/28/2013 10:57:41 PM
From: Bilow	2 Recommendations Read Replies (1) of 1576251

Hi combjelly; Re: " In the early 1980s the possibility of the ice caps melting causing sudden rises in sea level was in the media." (1) The polar ice cap melting doesn't cause a rise in sea level because it's already floating on water. This is basic physics taught in any high school physics class. Sometimes they demonstrate it by floating ice in a glass and noting that after the ice melts the water level doesn't go up. (2) The antarctic ice cap has been growing recently. But if this did melt, it would indeed cause the oceans to rise. (3) The other major source of ocean rise is Greenland. But it's well known to geologists that temperatures in the Eemian were considerably hotter than now (for many thousands of years) and that this was unable to melt the Greenland ice cap more than about 25% or so. I believe your memory of the alarmist chicken-little predictions are correct. I see them repeated even now. But they're just as much in violation of accepted (consensus you call it) science now as they were then. -- Carl

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