Possible Artifacts of Data Biases in the Recent Global Surface Warming Hiatus: NOAA Study

Science (June 4, 2015; DOI: 10.1126/science.aaa5632) / by Thomas R. Karl, et al.
http://www.sciencemag.org/content/early/2015/06/03/science.aaa5632

Much study has been devoted to the possible causes of an apparent decrease in the upward trend of global surface temperatures since 1998, a phenomenon that has been dubbed the global warming “hiatus.” Here we present an updated global surface temperature analysis that reveals that global trends are higher than reported by the IPCC, especially in recent decades, and that the central estimate for the rate of warming during the first 15 years of the 21st century is at least as great as the last half of the 20th century. These results do not support the notion of a “slowdown” in the increase of global surface temperature.

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