The Future of Epic Blizzards in a Warming World
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In case you haven’t heard, Washington, D.C., and other parts of the Mid-Atlantic region, are about to get walloped by a major storm that could bury the city in a record-breaking amount of snow.
The storm is expected to bring snows that could top 2 feet in the D.C. area and has already resulted in thousands of cancelled flights. While snows may not be quite as impressive further north, the storm’s fierce winds could whip up significant coastal flooding.
Part of the reason this Snowzilla storm is expected to dump so much snow is because it is pulling abundant moisture. As the planet warms because of excess heat trapped by human-emitted greenhouse gases, the atmosphere can hold more moisture. Scientists already expect heavy downpours to increase because of that. But there’s been little research into what that means for “epic blizzards” like this one.
It might seem that more moisture in the atmosphere along with warming temperatures should mean more rain than snow, and that’s true. But, it turns out, that’s only part of the story.
On Thursday, MIT climate researcher Paul O’Gorman reviewed a 2014 study he conducted that is one of the few to look at extreme snowfalls and warming. Speaking before a group of scientists during a talk at Columbia University, he detailed his use of climate models to look at how extreme snowfalls might change as the planet heats up. Global temperatures have already risen by nearly 2°F (1°C) since the late 1800s.
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http://www.scientificamerican.com/article/the-future-of-epic-blizzards-in-a-warming-world/
