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Analysis of 2,000 Years of Climate Records Finds Global Cooling Trend Ended in the 19th Century

Posted Apr 22 2013 3:28pm

Student researchers in a boat use acoustic imaging to select a lake site

The most comprehensive evaluation of temperature change on Earth’s continents over the past 1,000 to 2,000 years indicates that a long-term cooling trend--caused by factors including fluctuations in the amount and distribution of heat from the sun, and increases in volcanic activity--ended late in the 19th century.

The study also finds that the 20th century ranks as the warmest or nearly the warmest century on all of the continents, except Antarctica. ...

More at http://www.nsf.gov/news/news_summ.jsp?cntn_id=127658&WT.mc_id=USNSF_51&WT.mc_ev=click


This is an NSF News item.

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