New York Times: A new analysis halves longstanding projections of how much sea levels could rise if Antarctica’s massive western ice sheets fully disintegrated as a result of global warming. The flow of ice into the sea would probably raise sea levels about 10 feet rather than 20 feet, according to the analysis, published in the May 15 issue of the journal Science. The scientists also predicted that seas would rise unevenly, with an additional 1.5-foot increase in levels along the east and …