Image Smoke from the wildfires blanketed New York City yesterday.Credit...Dave Sanders for The New York Times At least 400 wildfires burning across Canada have triggered air pollution warnings across North America.The smoke hovered over major cities in Canada and the northern U.S., blotting out the sun and bringing home the realities of climate change for people who have rarely experienced the effects of forest fires firsthand.
#people #investigation #responsible #authorities #effectively #neighborhood #climate-change #philadelphia #engineering #north-america
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