US schools cancel recess, skylines vanish behind Canada wildfire smoke
More than a dozen U.S. states were under air-quality alerts on Wednesday as smoke from hundreds of Canadian wildfires wafted south, casting a dull gray pallor over...read more.
More than a dozen U.S. states were under air-quality alerts on Wednesday as smoke from hundreds of Canadian wildfires wafted south, casting a dull gray pallor over...read more.
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