Here's A (Small) Benefit Of Climate Change

Here's A (Small) Benefit Of Climate Change
FILE - In this Sept. 13, 2006 file photo, ice chunks float in the Arctic Ocean as the sun sets near Barrow, Alaska. The Arctic is a thermostat against overheating and a barometer of change, but now its own protective ozone layer that keeps out damaging ultraviolet radiation has thinned to record levels, the U.N. weather agency said Tuesday April 5, 2011. (AP Photo/Arctic Sounder, Beth Ipsen)
FILE - In this Sept. 13, 2006 file photo, ice chunks float in the Arctic Ocean as the sun sets near Barrow, Alaska. The Arctic is a thermostat against overheating and a barometer of change, but now its own protective ozone layer that keeps out damaging ultraviolet radiation has thinned to record levels, the U.N. weather agency said Tuesday April 5, 2011. (AP Photo/Arctic Sounder, Beth Ipsen)

As sea ice melts, one of climate change's economic impacts will be faster shipping through historically unnavigable routes in the Arctic.

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