More hard evidence that trace amounts of CO2 are lethal for moose: Since the mid-1980s, the moose population in western Michigan has only grown from 59 to 430

Moose Hunt Opposed - Michigan

DNR biologists believe about 430 moose are scattered among portions of Marquette, Baraga and Iron counties in the western U.P., while fewer than 100 range across parts of Alger, Schoolcraft, Luce, and Chippewa counties in the eastern U.P. The western population grew from a group of 59 moose transported to Marquette County from Algonquin Provincial Park in Ontario, Canada, in the mid-1980s.
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Scientists say a number of factors probably have limited their growth, including an increase in numbers of whitetail deer, which carry a brainworm parasite fatal to moose. The warming climate also may be a problem. Moose are cold-weather animals and the Upper Peninsula is on the southern fringe of their comfort zone.