Trump threatens new Canada tariffs over wildfire smoke in US cities - BBC News

Canadian leader Mark Carney says both the US and Canada have an equal responsibility to fight climate change, which experts say are worsening wildfire conditions.

Image source, Selcuk Acar/Anadolu via Getty ImagesImage caption, Smoke from the massive wildfires has cast an orange haze over New York City

US President Donald Trump has threatened to impose new tariffs on Canada after hundreds of wildfires have left much of the northern US covered by a blanket of smoke.

The threat follows complaints by US lawmakers over the wildfires and Ontario's premier Doug Ford asking the US to send support to fight the fires, rather than complain.

"The United States is being unnecessarily invaded by filthy, polluted, and unhealthy air," Trump said, threatening to impose new levies over Canada's "willful negligence".

As of Saturday, there were about 955 fires actively burning in Canada, according to the Canadian Wildland Fire Information System, external - with the majority burning out of control.