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Oceans will rise much more than predicted, NASA says

2015-08-28 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed

National Geographic: Year by year, millimeter by millimeter, the seas are rising. Fed by melting glaciers and ice sheets, and swollen by thermal expansion of water as the planet warms, the world's oceans now on average are about eight inches higher than a century ago. And this sea change is only getting started. The question is: How much higher will they go? NASA scientists are now warning that recent projections seem too conservative: Since 1992, sea levels have increased by an average of 3 inches around the world....

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NASA scientists warn of accelerating sea level rise as ice sheets melt

2015-08-28 16:00:00| Climate Ark Climate Change & Global Warming Newsfeed

Mashable: As the world's ice sheets melt in response to warming air and ocean temperatures, global sea level is increasing. This is already putting cities from New York to Shanghai at risk of almost routine flooding from even relatively minor storms. The question facing scientists and policy makers is how much sea level rise they need to plan for in the coming decades, and recent findings are concerning. On Wednesday, NASA scientists said they expect several feet of global sea level rise by the end of...

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NASA teleconference on sea level change warns of rising oceans

2015-08-28 04:07:00| Climate Ark Climate Change & Global Warming Newsfeed

Gizmag: On Aug. 26, NASA held a media teleconference regarding current predictions on sea level rise, highlighting the risks to coastal populations in low-lying areas, and the inherent problems in creating reliable global models. A panel of experts from NASA's recently-founded Sea Level Change Team tells us that ocean levels are inexorably on the rise, but gaps in our understanding and ability to survey risk regions mean we don't know just how fast the change will take place. "People need to be prepared...

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NASA Study Quantifies Plants' Role in Mitigating Urban Heat Island Effect

2015-08-27 17:02:00| Climate Ark Climate Change & Global Warming Newsfeed

Yale Environment 360: The presence or scarcity of vegetation is an essential factor in determining how much urban areas heat up, according to a NASA study. Using data from multiple satellites, the researchers found that areas covered in part by impervious surfaces such as asphalt, concrete, and steel had an average summer temperature 3.4 degrees F higher than nearby rural areas. The highest U.S. urban temperatures compared to surrounding areas were along the Interstate-95 corridor from Boston to Washington and around...

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Sea Level Rising Faster Than Expected, NASA Warns

2015-08-27 15:04:00| Climate Ark Climate Change & Global Warming Newsfeed

EcoWatch: New research underway indicates that at least three feet of global sea level rise is near certain, National Aeronautics and Space Administration (NASA) scientists warned Wednesday. Thats the higher range of the one to three feet level of rise the UN Intergovernmental Panel on Climate Change (IPCC) gave in its 2013 assessment. Sea levels have already risen three inches on average since 1992, with some areas experiencing as much as a 9-inch rise. Given what we know now about how the ocean expands...

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