3.8K views · 45 reactions | McGill researchers find that permafrost in the high Arctic may be less stable and more vulnerable to climate change than previously thought. Learn more: https://mcgill.ca/newsroom/channels/news/widespread-permafrost-degradation-seen-high-arctic-terrain-297371 | McGill University | Facebook

The Arctic permafrost has been expected to gradually thaw and release greenhouse gases into the atmosphere. But it may actually be sped up by instances of a relatively little known process called abrupt thawing that takes place under a certain type of Arctic lake. Details: https://go.nasa.gov/2OOfIfA | NASA - National Aeronautics and Space Administration