Cody Nelson: The Boundary Waters Future

MPR:

13d435-20180413-boundary-waters-big-moose.jpg
The Boundary Waters may seem unchangeable and stoic. But humankind’s actions over time are far too much for nature. If you know where to look, you can already see the Boundary Waters transforming from a lush forest into a desolate grassland. Warmer temperatures caused by human greenhouse gas emissions are letting maple and oak to start invading the region.

”Later on when the summers get really hot, because it’s shallow rocky soil, most of the trees will die and it will end up being savannah,” said University of Minnesota forest ecologist Lee Frelich. “So grassland with scattered oak trees.” The Boundary Waters’ eventual transition to a savannah, as predicted by research from Frelich and others, is a stunning example of how climate change will affect Minnesota...