ScienceRocks
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Global warming 'pause' since 1998 reflects natural fluctuation, study concludes
Let me see...There wasn't any volcanos over vei5 during the 2000's and 2010's. The 1980's and 1990's had a bunch. In fact only Puyehue-Cordón Caulle was a vei 5!
The 80's and 90's had two events each above 5.
The only natural forcing I can think of is aerosals from China doing what Europe and America did during the 50-70's.
Read more at: Global warming 'pause' since 1998 reflects natural fluctuation, study concludes
Statistical analysis of average global temperatures between 1998 and 2013 shows that the slowdown in global warming during this period is consistent with natural variations in temperature, according to research by McGill University physics professor Shaun Lovejoy.
In a paper published this month in Geophysical Research Letters, Lovejoy concludes that a natural cooling fluctuation during this period largely masked the warming effects of a continued increase in man-made emissions of carbon dioxide and other greenhouse gases.
The new study applies a statistical methodology developed by the McGill researcher in a previous paper, published in April in the journal Climate Dynamics. The earlier studywhich used pre-industrial temperature proxies to analyze historical climate patternsruled out, with more than 99% certainty, the possibility that global warming in the industrial era is just a natural fluctuation in the earth's climate.
In his new paper, Lovejoy applies the same approach to the 15-year period after 1998, during which globally averaged temperatures remained high by historical standards, but were somewhat below most predictions generated by the complex computer models used by scientists to estimate the effects of greenhouse-gas emissions.
Let me see...There wasn't any volcanos over vei5 during the 2000's and 2010's. The 1980's and 1990's had a bunch. In fact only Puyehue-Cordón Caulle was a vei 5!
The 80's and 90's had two events each above 5.
The only natural forcing I can think of is aerosals from China doing what Europe and America did during the 50-70's.
Read more at: Global warming 'pause' since 1998 reflects natural fluctuation, study concludes