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科学美国人60秒双语科学新闻地球篇:海洋也会遵守受热膨胀的物理定律

Lily85 于2013-04-06发布 l 已有人浏览
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你不能阻挡涨潮,也不能阻挡海平面上升。当然,冰川在不断融化。液态的水受热会膨胀。由于气候变暖,海洋也在膨胀。
    小E英语欢迎您,请点击播放按钮开始播放……

You can't hold back the tide. Or sea level rise. There's melting ice, of course. But H2O that's already liquid expands as it warms—and the oceans are warming from climate change.
你不能阻挡涨潮,也不能阻挡海平面上升。当然,冰川在不断融化。液态的水受热会膨胀。由于气候变暖,海洋也在膨胀。

That sea level rise isn't the same everywhere. The moon's pull, oceanic currents, the Earth's rotation—these all play a role in what ocean water is where. Turns out the U.S. East Coast is experiencing sea level rise three to four times higher than the global average, according to a study from the U.S. Geological Survey in the journal Nature Climate Change.
在各地,海平面上升的情况并不相同。月球的引力,洋流,地球的自转,这些都是影响海水分布的因素。事实证明,美国东海岸的海平面正以高出全球平均水平3至4倍的速率上升。美国地质调查局发表在《自然气候变化》期刊上的一项研究如此报告。

That's bad news for the highly populated region and suggests storm surges are going to prove ever more problematic from New York City to Cape Hatteras.
对于人口密集的地区来说是个坏消息。从纽约市到哈特拉斯角,飓风潮的破坏性会越来越严重。

By the end of this century, greenhouse gases in the atmosphere could produce sea level rise of as much as 80 centimeters along the East Coast. Further into the future, even a low emissions scenario sees the seas rise by a meter and a half and if we continue emitting at our present pace sea level rise might be close to three meters—and still rising. No matter what some folks choose to believe.
到这个世纪末,大气中的温室气体会导致东海岸的海平面上升80厘米。在更远的将来,即使只排放少量的温室气体,也会造成海平面上涨1.5米。如果人类持续以目前的速率排放温室气体,那么海平面上涨幅度可能会接近3米,并会持续上升。不管你信不信,反正海平面会上升。

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