Ask a Climatologist: Arctic sea ice drives climate around the globe

Ice floats in Baffin Bay between Canada and Greenland above the Arctic circle on July 10, 2008. (Photo by Jonathan Hayward/Canadian Press)Arctic sea ice extent hit a new record low in March for the third year in a row. That sea ice, or lack of it, drives climate patterns around the globe.
But how?
We put that question to Brian Brettschneider for the segment, Ask a Climatologist.
Brettschneider said it’s all about energy. Sea ice reflects most of the sun’s energy back into space. Less