View sequential still images of thermokarst (thawed permafrost) at Horn Lake in northern Alaska during the summer of 2010. The video was made by researchers studying the responses of Arctic landscapes to permafrost degradation.
A trip to the Chena Hot Springs in Fairbanks, Alaska. There are images from the ice museum, greenhouses, and geothermal power plant. Video taken by Liz Ratliff, IceCube In Ice Antarctic Telescope 2012 expedition