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Recreating the Ice Age to halt global warming?

For thousands of years, permafrost has trapped Siberia's carbon-rich soil, a compost of Ice Age plants and animal remains. But global warming is melting the permafrost and exposing the soil, causing highly flammable methane to seep out.

NBC’s Jim Maceda traveled to the far reaches of East Siberia to meet father and son scientists Sergei and Nikita Zimov who have come up with some innovative ideas about how to halt global warming and stop the permafrost from melting. Watch the video below to see how re-introducing wild animals to the area may help re-create the old Ice Age conditions and solve part of the problem.

Read more about the threat of permafrost melting from the New York Times: Warming Arctic Permafrost Fuels Climate Change Worries