Computer models that usually give wrong answers, blame "global warming" for very hot days

Little-Acorn

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Jun 20, 2006
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With nowhere else to go (except to admit the truth, an option not on the liberals' table), the global-warming salesmen have come out with yet another "study" that claims very hot days are usually caused by greenhouse gases. And that "study" is based on - you guessed it - the same computer models that have consistently predicted mistaken trends that have never materialized when compared to actual weather patterns.

As a victim of Democrats' midnight raids in Wisconsin recently commented, "These people will never stop."

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Study blames global warming for 75 percent of very hot days

Study blames global warming for 75 percent of very hot days

By SETH BORENSTEIN, Associated Press
Apr. 27, 2015 11:00 AM ET

WASHINGTON (AP) — If you find yourself sweating out a day that is monstrously hot, chances are you can blame humanity. A new report links three out of four such days to man's effects on climate.

And as climate change worsens around mid-century, that percentage of extremely hot days being caused by man-made greenhouse gases will push past 95 percent, according to the new study published Monday in the journal Nature Climate Change.

Humans have not had as great an effect on heavy downpours, though. The Swiss scientists who did the study calculated that 18 percent of extreme rain events are caused by global warming. But if the world warms another two degrees Fahrenheit (1.1 degrees Celsius) — expected to happen around mid-century — about 39 percent of the downpours would be attributed to humanity's influence, according to the study. That influence comes from greenhouse gases, mostly carbon dioxide from the burning of coal, oil and gas.

"This new study helps get the actual probability or odds of human influence," said University of Arizona climate scientist Jonathan Overpeck, who wasn't part of the research. "This is key: If you don't like hot temperature extremes that we're getting, you now know how you can reduce the odds of such events by reducing greenhouse gas emissions."

Lead author Erich Fischer, a climate scientist at ETH Zurich, a Swiss university, and colleague Reto Knutti examined just the hottest of hot days, the hottest one-tenth of one percent. Using 25 different computer models, Fischer and Knutti simulated a world without human-caused greenhouse gas emissions and found those hot days happened once every three years.

Then they calculated how many times they happen with the current level of heat-trapping gases and the number increases to four days. So three of the four are human caused, the team said.
 

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