Pacific Ocean cools, flattening global warming
"Really, this seems pretty straightforward. The climate is complicated, and natural variability can mask trends seen over century-long timescales," says climate scientist David Easterling of the National Oceanic and Atmospheric Administration's National Climatic Data Center in Asheville, N.C.
MIT's Susan Solomon is more skeptical of the Pacific Ocean cooling as an explanation for the flattening, saying "a chicken vs. egg problem" dogs the finding. "Did the sea surface temperatures cool on their own, or were they forced to do so by, for example, changes in volcanic or pollution aerosols, or something else? This paper can't answer that question."