Climate: Antarctic ice shelf retreat may be irreversible

Summit County Citizens Voice

Yes, there is still lots of ice in Antarctica, but it's melting faster than ever. bberwyn photo. Yes, there is still lots of ice in Antarctica, but it’s melting faster than ever. @bberwyn photo.

ESA satellites offer clues about climate change consequences

Staff Report

An analysis of data from European Space Agency satellites shows that Antarctic ice shelves may be losing their buttressing role as they get thinner and retreat inland.

The findings, announced in February, used ice velocity data to show that there is a critical tipping point at which the shelves act like a restraining band, holding back the the ice that flows toward the sea. In a dramatic press release, the ESA said that, if the ice is lost, it could be “point of no return” for Antarctica’s ice.

The ice shelves are huge and losing them would have serious implications for global climate, speeding the rise of sea level. The Ross Ice Shelf, for example, is the size of Spain and towers hundreds…

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