Diary of the Future
Jonathan Cloud February 22nd, 2014
February 22, 2014: Climate disruption is becoming increasingly evident in our times. As we begin to thaw out from what has been a surprisingly cold and snowy winter, it seems almost comical to have to ask whether this is somehow connected with global warming. It is. The southward migration of the polar vortex, which we’ve all started hearing about, is partly caused by an upwelling of warm air in the Arctic, causing the center of the vortex to rise and the edges to spill outward. This doesn’t mean that global warming causes it, but only that it likely exacerbates it, continuing a changing pattern of weather events that taken together are what we mean by “climate change.”
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https://www.jonathancloud.com/wp-content/uploads/2014/02/nasa-polarvortex-drop.jpg.CROP_.original-original.jpg 354w" sizes="(max-width: 150px) 100vw | 150px" /> NASA Goddard Space Flight Center[/caption] | — | Of course this is not the first 'Arctic winter' to be experienced in the U.S., though it dropped record amounts of snow and broke all of the low temperature records set since the National Weather Service started keeping them in the 1870s. And the disturbance may well be linked to climate change. According to Phil Plait writing in Slate (Feb 2014): "warming water in the Arctic leads to ice loss which leads to more warm water. Some climate scientists think this may be disrupting the air flow in the polar vortex, which in turn leads to the meanders in the jet stream. This idea is pretty new and not yet verified. But the irony is clear: If these scientists turn out to be right, not only does the cold weather not disprove global warming, it may actually be caused by it." |