New York Times: Scientists probably have significantly underestimated how much the worlds oceans have warmed since the 1970s, according to a new study. The finding may force researchers to revise their gauges of some climate change effects, including the rate of sea-level rise. The study, by Paul J. Durack of Lawrence Livermore National Laboratory and others, found that the underestimation was the result of decades of spotty sampling of water temperatures in the Southern Hemisphere, home to three-fifths of the...