You Ought to Have a Look: Natural Climate Variability

“‘Finally, the observed record and historical model experiments were used to investigate changes in the recent past. In part because of large intrinsic variability, no evidence was found for changes in extreme precipitation attributable to climate change in the available observed record.’

Pretty emphatic and straightforward summary.

So, the next time you read that such and such extreme precipitation event was made worse by global warming, you’ll know that there is precious little actual science to back that up.”

NOT A LOT OF PEOPLE KNOW THAT

By Paul Homewood

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http://www.cato.org/blog/you-ought-have-look-natural-climate-variability

While Al Gore is blaming the Louisiana floods on global warming, Michaels and Knappenberger introduce some inconvenient facts:

We’ve got a lot cover this week, so let’s get right to it.

On the science front, we want to highlight two new papers that both suggest that attributing heavy precipitation events in the United States to human-caused climate change is a fool’s errand (not that there aren’t plenty of fools running around out there). This is a timely topic to explore with the big rains in Louisiana over the weekend leading the news coverage.

One paper by a research team from the University of Iowa found that “the stronger storms are not getting stronger” and that there has not been any change in the seasonality of heavy rainfall events by examining trends in the magnitude, frequency, and seasonality of heavy rainfall events in the United States. They…

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