The biggest problem to the world is rising sea levels, glaciers are responsible for 21% of sea level rise.

世界上最大的问题是海平面上升，冰川造成了21%的海平面上升。

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Mark Serreze, director of the American National Snow and Ice Data Center (NSIDC) in Colorado, thinks that sea level rise is going to be a bigger and bigger problem, as we move through the 21st century.

美国国家冰雪数据中心（NSIDC）位于科罗拉多州，其主任马克·塞雷泽（Mark Serreze）认为，随着我们进入21世纪，海平面上升将成为一个越来越大的问题。

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Many cities are on the coasts, vulnerable to storms, inundation and sea level rise.

许多城市都位于沿海地区，易受暴风雨、洪水和海平面上升的威胁。

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"We already know that New Orleans is in the same way, but also areas like Bangladesh or smaller areas of islands that will be flooded within that one-meter sea level rise."

VOA: standard.2009.03.12

The nesting grounds for pelicans, gulls and other water foul, they rise less than 30 centimeters above sea level.

VOA: standard.2010.05.09

"The key finding of this meeting is that we have up to one-meter sea-level rise by 2100, based on our new insight of glaciers.

VOA: standard.2009.03.12

He is an expert on sea level rise and methods of adapting to it.

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