"Ice sheet in Antarctica has melted past ‘point of no return,’ NASA says" PBS NewsHour 5/12/2014
Excerpt
JUDY WOODRUFF (NewsHour): Scientists have long been warning of the risks posed by melting ice sheets. But a study released today offers the most definitive word yet from NASA and other researchers that parts of the ice sheet in the West Antarctica are melting, a pattern they say is now irreversible.
Eventually, scientists say, it will lead to rising sea levels. The study finds that a series of glaciers in the Amundsen Sea have — quote — “passed the point of no return” and are draining into the water, with faster-melting levels shown in red. One is shown here in time-lapse footage. And some of these glaciers have been retreating more than a mile a year between 1996 and 2011.
The collapse of the ice sheet will take more than a century to play out, but the new estimates captured international attention today.
NASA’s Tom Wagner is one of the lead members of the team. And he joins us right now.
1 comment:
Thank you for additional information about the Earth is warming, and extreme weather events are taking place all over the world. I also hope that the countries linked together giving a environmental protection measures to protect the earth, and everyone joined
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