Climate change is nothing new. A few thousand years ago, much of North America was covered in ice and glaciers. They are still retreating, the climate is warming once again, and the land is still rising now that it is relieved of some of the weight of the ice. This lecture explains how glaciers formed then and now, how they scar the ground beneath them, and how important they are to the water cycle.
*Class Dates: 7/22 (only).