Glacial Melt Drives Primary Production in Antarctic Dry Valley Lakes
![gray landscape, leading up from a gray sea](https://lternet.edu/wp-content/uploads/2017/05/aa4c0d72-1221-4ca3-9701-67f7baa71781-1.jpg)
The ice-covered lakes in the McMurdo Dry Valleys, a polar desert, rely on glacial melt for almost all their inputs. A recent study of Lake Fryxell suggests that in this environment even small changes in climate can impact biological productivity in the lake.