As tens of thousands of firefighters battled dozens of wildfires across Oregon, the state’s senior U.S. senator found himself fighting a different battle on Capitol Hill late last week. Sen. Ron Wyden ...

A new study calculates that human-caused climate change doubled the likelihood of the tinderbox weather conditions that ...

The leader of Canada’s Ontario province on Saturday lashed out at President Donald Trump over his threat to add “the cost of pollution” from that country’s wildfires to US tariffs.

Growing wildfires in Canada sent smoke billowing into the United States in mid-July, with the contaminated air drawing social media scorn and tariff threats from Donald Trump. But a supposed Truth ...

Donald Trump has stirred fresh debate after sharing an AI-generated image of a giant border wall designed to block wildfire smoke from Canada. The unusual post arrived as the president continued to ...

The smoke coming from active wildfires in Canada has led to unhealthy air quality in swaths of the U.S., which could affect the World Cup final in New Jersey.

Add Yahoo as a preferred source to see more of our stories on Google. President Donald Trump has claimed Canadian wildfire smoke has poisoned American air and suggested Canada should pay damages or ...

Donald Trump has a plan to punish Canada over the wildfires, and he’s not saying what it is. The US president confirmed he ...