Chilling

ChillingThe New Yorker 2006 :“The satellites, nicknamed Tom and Jerry, have been chasing each other around the globe….. By monitoring their relative positions to the fantastic exactitude of one micron—less than one-fiftieth the width of a human hair—scientists can detect tiny variations in the earth’s gravitational field."

Now, almost four years to the day after they were launched, Tom and Jerry have yielded a scarily significant result: Antarctica is losing ice….. The finding, which was reported two weeks ago in the online version of Science, is particularly ominous, because climatologists had expected that even as the ice sheet lost mass at its edges, its over-all mass would increase, since rising temperatures would lead to more snowfall over the continent’s midsection.”