Will carbon dioxide really drive armadillos to Chicago?

Environment groups see danger in climate change

Just as climate-change skeptics note, Dale Engchrist, president of the Chicago Wilderness Trust and retired National Park Service superintendent at the Indiana Dunes, said climate change is indeed a natural phenomena. Icy glaciers once covered the Midwest, after all.  But by polluting the air with greenhouse gases, humans have turned up the global thermostat faster than plants and animals can adjust, he said.
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Engchrist wondered aloud what niche armadillos will find at the dunes when they arrive.