It's here. It's become a part of summer in most areas of Canada. It's bad for you. 

What exactly makes wildfire smoke harmful to breathe? And what about the mental health impact of hazy skies and a darkened future?

If we're going to live with this we need less speculation, and more science and solutions. Here they are.

GUEST: Dr. Courtney Howard, emergency physician; Vice-Chair of the Global Climate and Health Alliance

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