Friday, February 3, 2023
HomeMiddle ColumnStudy: Climate forecasts may be flawed

Study: Climate forecasts may be flawed


Predictions of unprecedented rainfall extremes in the 20th century driven by global warming turned out wrong, a study said Wednesday, casting doubt on methods used to project future trends.

A massive trawl of Northern Hemisphere rainfall data for the last 1,200 years revealed there had been more dramatic wet-dry weather extremes in earlier, cooler centuries before humans set off fossil fuel-driven global warming.

This is problematic, said a study in the journal Nature, as the same data models used to anticipate that global warming would cause record rainfall extremes in the 1900s, are the basis for projections of things to come.

“It might be more difficult than often assumed to project into the future,” the study’s lead author Fredrik Ljungqvist of Stockholm University told AFP of the findings.

“The truth can be much, much more complicated.”

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