US President Donald Trump on Friday threatened a tariff increase on Canada to cover the cost of smoke pollution from wildfires that have choked large parts of the US. Dense wildfire smoke billowing ...

US President Donald Trump blamed Canada for wildfire smoke spreading across the United States and said he would add the ...

Dense wildfire smoke billowing down from Canada and northern Minnesota has set off unhealthy air quality alerts across the US. Donald Trump accused Canada of 'not properly maintaining' their forests ...

Wildfire smoke from Canada will worsen air quality in D.C. Thursday, with Code Orange in effect and conditions potentially reaching Code Red on Friday.

I'm old enough to remember when Congress — like most Americans —worked during the summer.