Since 1966, Arctic land covered by snow is down by 18 percent. Nearly all glaciers and ice caps in the Arctic have shrunk in the last 100 years. The Arctic is warming like never before and scientists say it is because of global warming caused by the release of green house gases by humans and that the Arctic Ocean will become ice free in summer within the next 30-50 years. Take a look at this scientific expedition to find out if the tentacles of climate change are spreading to the rooftop of the world.Watch videos for more.
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