Climate Change: A Lake Falls off a cliff: Losing Permafrost caused softening of the soil.

http://www.slate.com/articles/video/video/2015/12/lake_falls_off_cliff_due_to_climate_change_in_canada_video.html?wpsrc=kwfacebookvid&kwp_0=80540&kwp_4=776445&kwp_1=389949

The Lake That Fell Off a Cliff

A dramatic scene from our changing climate