Over 2T tons of ice melted in arctic since '03 WASHINGTON - More than 2 trillion tons of land ice in Greenland, Antarctica and Alaska have melted since 2003, according to new NASA satellite data that show the latest signs of what scientists say is global warming. Western Antarctic ice chunk collapses A chunk of Antarctic ice about seven times the size of Manhattan suddenly collapsed, putting an even greater portion of glacial ice at risk, scientists said Tuesday. Sinking liner evacuated off Antarctica A Canadian cruise ship struck submerged ice off Antarctica and began sinking, but all 154 passengers and crew, Americans and Britons among them, took to lifeboats and were plucked to safety by a passing cruise ship.
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