Newsy2011.3.11---NASA :北南極冰蓋融化速度更快

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Newsy2011.3.11---NASA :北南極冰蓋融化速度更快
NASA Study Says Ice Caps Melting at a Much Faster Rate
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Is it global warming on steroids? A new NASA study finds both the Arctic and Antarctic ice caps are melting at a much faster rate than previously believed. The 18-year study discovered the ice sheets are now the number one contributor to rising sea levels.
A researcher from the University of Colorado tells Discovery News - the Arctic has always been the canary in the coal mine - and now it might be too late.
“As the effects of greenhouse warming take hold, it’s the Arctic where we’re going to see it first, it’s the Arctic where those changes are going to be most pronounced. It’s exactly what we see. It’s a case of we hate to say we told you so, but we did, and it’s time to take action.”
The study says the melting ice sheets would add 5.9 inches to the sea level. Along with mountain ice melting and other factors - the sea level will actually rise 12.6 inches. A writer for Ars Technica says - this is very bad news for lowland areas.
“Though one foot may not sound like much, a FEMA study estimated storm surges under such a scenario would cause about 40 to 60 percent more damage than at present. That seems like small potatoes compared to the kinds of problems … many Pacific islands will likely face in just 40 years.”
And humans aren’t the only ones effected. Recently, a polar bear spent nine days swimming across the Beaufort Sea - her cub died before they were able to find ice to land on.
“There underlies a real problem here in general: polar bears who depend on this ice will also be displaced from their home at a faster rate than expected... What animals will be displaced in the polar ice regions of the world as the melting trends continue?” (Gather)
Eric Rignot - who lead the study - says global warming is the sole cause for the melting in Greenland, but he’s not so sure about Antarctica.
"In Antarctica, the story is a little more complex... We think the change is driven by the ocean, but we're not exactly sure what the ocean is doing." (OC Register)
U.N. reports predict the world will have 50 million environmental refugees by 2020 - less than 10 years from now - because of climate change.
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美國航空航天局研究稱冰蓋的融化在更快的速度
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它是全球變暖對類固醇？美國宇航局的一項新研究發現無論是北極和南極冰蓋融化以更快的速度比以前認為的。這位 18年的研究發現了冰層現在的頭號功臣海平面上升。
一位研究人員來自科羅拉多大學的發現告訴新聞 - 北極一直是金絲雀在煤礦 - 現在它可能為時已晚。
“由於溫室效應的影響把握，它的北極，我們將看到它的第一，它的北極在這些變化將會是最明顯。這正是我們所看到的。這是一個案件，我們不想說我們告訴你，但我們做到了，現在是時候採取行動。“
這項研究說，冰蓋融化將增加5.9英寸到海平面。隨著山地冰川融化等因素的影響 - 海平面將上升12.6英寸實際。一個作家，Ars Technica的說 - 這是非常不好的消息為低地地區。
“雖然一隻腳可能聽起來不多，一聯邦緊急事務管理局的一項研究估計風暴潮在這種情況下會導致大約 40到百分之60比現在更大的破壞。這似乎像小土豆比種問題 ...許多太平洋島嶼將可能面臨在短短40年。“
而人類是不是唯一的影響。最近，花了九天北極熊橫渡波弗特海 - 她的孩子死了，然後才能夠找到冰的土地上。
“有一個實際問題的基礎在這裡一般：北極熊誰依靠這種冰也將被迫離開他們的家以更快的速度超過預期 ...什麼動物將被迫在極地冰區的世界融化的趨勢繼續下去？“（收集）
埃里克Rignot - 誰領導這項研究 - 說，全球變暖的唯一原因是在格陵蘭的融化，但他不能肯定有關南極洲。
“在南極，故事是一個稍微複雜一點 ...我們認為這一改變是由海洋，但我們並不確定到底是做什麼的海洋。” （業主立案法團登記冊）
聯合國的報告預測，全球將有5000萬環境難民 2020年 - 不到10年了 - 因為氣候的變化。
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