Bombshell Study Links Epic California Drought, ‘Frigid East’ To Manmade Climate Change

For the first time, scientists have made a specific and definitive link from global warming to extreme weather.
Bombshell Study Links Epic California Drought, ‘Frigid East’ To Manmade Climate Change

It's not as if we didn't already assume this was happening, but scientists have been reluctant to draw a definitive line. But the right-wingers will quickly explain this is simply part of that liberal agenda-driven excuse for science:

Natural variability alone cannot explain the extreme weather pattern that has driven both the record-setting California drought and the cooler weather seen in the Midwest and East this winter, a major new study finds.

We’ve reported before that climate scientists had predicted a decade ago that warming-driven Arctic ice loss would lead to worsening drought in California. In particular, they predicted it would lead to a “blocking pattern” that would shift the jet stream (and the rain it could bring) away from the state — in this case a “Ridiculously Resilient Ridge” of high pressure.

A new study in Geophysical Research Letters (subs. req’d) takes the warming link to the California drought to the next level of understanding. It concludes, “there is a traceable anthropogenic warming footprint in the enormous intensity of the anomalous ridge during winter 2013-14, the associated drought and its intensity.”

The NASA-funded study is behind a pay wall, but the brief news release, offers a simple explanation of what is going on. The research provides “evidence connecting the amplified wind patterns, consisting of a strong high pressure in the West and a deep low pressure in the East [labeled a 'dipole'], to global warming.” Researchers have “uncovered evidence that can trace the amplification of the dipole to human influences.”


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