Pure alarmism from a Minnesota "forest ecologist"

Excerpt from this article:

"With a doubling of [carbon dioxide], our forests will shift 200 to 400 miles northward," University of Minnesota forest ecologist Lee Frelich told about 250 people who crowded into the auditorium at Vermilion Community College. "There would be a tsunami of grass from the west. Minnesota would end up without much forest at all."

Although it seems that Minnesota warmed over the last century, I still see a lot of trees and very little grass when I look out my window.

In this article, we can see that Frelich has a backup catastrophe to sell if the global warming one doesn't work out.

Excerpts:

If the global climate change doesn’t transform the northern forests into something we don’t recognize, the invasive species will.

That was the simple but dramatic message delivered by Dr. Lee Frelich to about 100 guests at the 2006 Sigurd Olson Lecture at Vermilion Community College late last week.
...
Warming also will bring a higher frequency of harsh storms such as the supercell storm system that produced huge downbursts on July 4, 1999, across the boundary waters, stripping 400,000 acres of trees.

“I would love to be completely wrong about this whole (global warming) thing,” he said, “but invasives are coming regardless of global warming.”