According to IQAir, a world leading pollution monitoring site, Oregon's largest city, Portland, now has the worst air quality in the world. Satellite images showed the smoke was wafting inland in the eastern direction, the Bureau of Land Management said on Twitter on Sunday. Washington State Wine Commission's communications manager Heather Bradshaw told the drinks business that the body is "carefully monitoring several wildfires" across the state, but is as yet not concerned about "widespread smoke exposure in the vineyards".
The blazes have burned almost five million acres (two million hectares) across the US West, torching an area roughly the size of the state of New Jersey, with fears the death toll may rise.
But changes in climate and weather patterns - warming temperatures, periods of drought and erratic rains - also are causes.
Most of the fatalities have occurred in California and OR, with emergency services in the two states recording 26 deaths.
All told in California, almost 17,000 firefighters were battling 29 major wildfires on Sunday, Cal Fire said. And it had back-to-back heat waves. He tweeted appreciation of firefighters and emergency responders on Friday, the first pubic comments he had made in weeks about the fires that's killed dozens, burned millions of acres and forced thousands from their homes on the West Coast.
Biden has made combating climate change a centerpiece of his campaign, while Trump early in his presidency withdrew the USA from the worldwide Paris climate change pact.
"This is a wake-up call for all of us that we've got to do everything in our power to tackle climate change", she said. But he noted that 57% of the state's land is federal forestland, and 3% is state forestland. White House adviser Peter Navarro echoed that Sunday on CNN's "State of the Union", saying that for many years in California, "particularly because of budget cutbacks, there was no inclination to manage our forests".
Newsom, after touring an area around Lake Oroville burned by wildfire last week, said the memorandum commits federal and state agencies to do more to reduce wildfire risks. The efforts can also be undercut when homeowners in rural areas don't undertake similar efforts on their own properties. But just like he did during California's then-record wildfire season two years ago, Trump got off Air Force One in California on Monday and immediately suggested forest management - raking forest floors and performing controlled burns, for example - could solve all of California's problems.
"They never had anything like this", he said.
US President Donald Trump takes a brief break from the campaign trail on Monday to visit California, where record wildfires have killed 35 people and fueled accusations he is in denial about climate change. "The West is literally on fire, and he blames the people whose homes and communities are burning", Biden said.
Brown, like Democratic California Governor Gavin Newsom, has argued that the intensity of the fires raging in Oregon, Washington and California is a clear sign of climate change.
A U.S. flag is taped to the pole at the entrance of a house destroyed by fire in the aftermath of the Beachie Creek fire near Gates, Oregon, U.S., September 14, 2020.
The president countered: "I don't think science knows, actually".
"Maybe there is a parallel universe where a pot on the stove with the burner turned to high 'starts getting cooler.' But that is not our universe", said Stanford University climate scientist Chris Field. "There is something going on, that's for sure, man".