There?s a growing health problem in the United States and Canada today. It?s costing millions of dollars, harming our health and damaging both our nations? productivity.

This particular health challenge isn?t contagious, like HIV and the avian flu. You won?t hear about it on the national news tonight, or from friends and neighbors. But it should be ? and that?s why I decided to participate in the Shared Air Summit hosted by Ontario Premier Dalton McGuinty in Toronto this week.

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