National Science Foundation: Record California Drought Directly Linked To Climate Change

A Stanford study funded by the National Science Foundation (NSF) confirms a growing body of research that finds “The atmospheric conditions associated with the unprecedented drought in California are very likely linked to human-caused climate change.”

The NSF news release, headlined, “Cause of California drought linked to climate change,” explains:

Climate scientist Noah Diffenbaugh of Stanford University and colleagues used a novel combination of computer simulations and statistical techniques to show that a persistent region of high atmospheric pressure over the Pacific Ocean–one that diverted storms away from California–was much more likely to form in the presence of modern greenhouse gas concentrations.

Unprecedented droughts often combine a reduction in precipitation with higher temperatures that increase evaporation, leaving soil parched. As the NSF notes in this case, “Combined with unusually warm temperatures and stagnant air conditions, the lack of precipitation has triggered a dangerous increase in wildfires and incidents of air pollution across the state.”

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