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Politics : Formerly About Advanced Micro Devices -- Ignore unavailable to you. Want to Upgrade?

To: PKRBKR who wrote (1202901)	2/21/2020 9:01:09 AM
From: Wharf Rat	1 Recommendation Recommended By sylvester80 Respond to of 1583559

"Why aren't you blaming these conquerors that immigrated from Africa via Asia for all this damn warming? " Conquerors who immigrated from Africa via Europe are responsible. "Why should we care about a few more inches of sea level rise before the next ice age?" Greenland and Antarctica have enuf ice to raise sea levels about 220 feet. The next ice age isn't expected for another 100,000 years. Abstract Most estimates of global mean sea-level rise this century fall below 2?m. This quantity is comparable to the positive vertical bias of the principle digital elevation model (DEM) used to assess global and national population exposures to extreme coastal water levels, NASA’s SRTM. CoastalDEM is a new DEM utilizing neural networks to reduce SRTM error. Here we show – employing CoastalDEM—that 190?M people (150–250?M, 90% CI) currently occupy global land below projected high tide lines for 2100 under low carbon emissions, up from 110?M today, for a median increase of 80?M. These figures triple SRTM-based values. Under high emissions, CoastalDEM indicates up to 630?M people live on land below projected annual flood levels for 2100, and up to 340?M for mid-century, versus roughly 250?M at present. We estimate one billion people now occupy land less than 10?m above current high tide lines, including 230?M below 1?m. S. Kulp and B. Strauss. New elevation data triple estimates of global vulnerability to sea-level rise and coastal flooding. Nature Communications. Published online October 29, 2019. doi: 10.1038/s41467-019-12808-z.