The 'Winter Grab' delves into Lake Superior's seasonal secrets

February 25, 2022 - MPR’s Dan Kraker reports on Lake Superior research known as the “Winter Grab.” Scientists have a pretty good understanding of what goes on in the Great Lakes during the summer. But they don't know nearly as much about Lake Superior and the other lakes during winter. That's significant because winter is when the lakes are experiencing their most dramatic impacts from climate change.