North American environment 'at risk.'

Argues that health of the environment in Canada, the United States, and Mexico is at risk, according to a report by the Montreal, Quebec-based Commission for Environmental Cooperation. Details of the study, 'The North American Mosaic: A State of the Environment Report'; Degradation of North America's biodiverse regions, including threats to mammals, birds, reptiles, and amphibians; Destruction and alteration of habitat; Deterioration of certain aspects of air quality.