Canadian leader Mark Carney says both countries have a responsibility to fight climate change.

Trump blamed Canada for wildfire smoke and called for more tariffs, accusing the country of mismanaging its forests.

Trump said the US is 'being unnecessarily invaded by filthy, polluted, and unhealthy air, the quality of which is dangerous and totally unacceptable' ...

The United States is being unnecessarily invaded by filthy, polluted, and unhealthy air,’ Trump wrote on Truth Social ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. Trump issued the message in a Truth Social post on Friday afternoon ...

WASHINGTON — President Donald Trump threatened Friday to increase tariffs on Canada due to smoke from wildfires in Ontario blanketing parts of the United States as Republican lawmakers escalated their ...

US President Donald Trump threatened on Friday a tariff increase on Canada to cover the cost of smoke pollution from wildfires that have choked large parts of the United States. "This is Willful ...

US President Donald Trump has threatened new tariffs on Mexico following a lettuce-linked foodborne illness outbreak, and on Canada over wildfire smoke drifting across the American border. The ...

President Trump threatened new tariffs on Canada due to wildfire smoke. He accused Ottawa of failing to manage forests and causing unhealthy air. Smoke from hundreds of Canadian wildfires has spread ...

President Donald Trump is threatening to charge tariffs to Canada over record levels of hazardous air drifting into the U.S. from hundreds of wildfires burning in the north.

President Trump is indicating that he may punish Canada over wildfire smoke that’s drifted into the U.S. further inflaming tensions.

'I have a good relationship with Mark Carney, but you know, we got to stop the fires up there.' ...