As Newsom toured a ghostlike landscape destroyed by flames Friday, he called out the "ideological BS" of those who deny the danger.
Firefighters are now battling 29 major fires in California, with the so-called August Complex burning across Mendocino and Humboldt counties, overtaking the LNU Lightning Complex and the SCU Lightning Complex to become the largest fire in state history. Forestry officials have said that years of policies created to suppress as many fires as possible have allowed fuel to accumulate in forests across the West. Vehicle and truck emissions are the single biggest contributor to climate change, and California has always been empowered to set its own rules. And it had back-to-back heat waves.
All told, more than 3 million acres have burned in California, representing 3% of the state's total landmass.
She added: "This is a wake-up call for all of us that we've got to do everything in our power to tackle climate change".
Trump's comments belied the broad consensus among scientists that climate change is contributing heavily to the worsening of wildfire seasons - and that the problem will get worse over time, not better. 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". The initiative aims to reduce wildfire risk for 500,000 acres of forest land per year. Millions of dollars are spent on such reduction efforts every year in Western states though many argue more needs to be done.
Trump on his arrival also repeated his argument that the wildfires are due to poor maintenance of forest areas, making them more combustible. He pointed to drought and the need to reduce carbon emissions.
US fires: Situation changing 'minute by minute'
The manifold effects of rising global temperatures require "leadership, not scapegoating", Biden said, and they demand that the president "meet the threshold duty of the office: To care".
Joe Biden on Monday denounced President Donald Trump as a "climate arsonist" whose unwillingness to acknowledge the threat posed by climate change was characteristic of his inability to steer the country through various concurrent crises.
"The only moisture in eastern Washington was the tears of people who have lost their homes and mingling with the ashes".
BBC environment correspondent Matt McGrath says that while natural factors such as strong winds have helped the spread of the West Coast fires, the underlying heating of the climate from human activities is making these conflagrations bigger and more explosive. Officials have said more people are missing, and the number of fatalities is likely to rise, though they have not said how high the toll could go as they search.
"We don't want to minimise the impact of climate because it's significant already and because it's growing in the future", said Dan Cayan, a climate researcher at the Scripps Institution of Oceanography at the University of California San Diego.
Crews in Jackson County, Oregon, where Talent is located, were hoping to venture into rural areas where the Almeda Fire has abated slightly with slowing winds, sending up thick plumes of smoke as the embers burned. "I don't think science knows actually".
Authorities in California, where 24 people have died since 15 August, reported on Sunday that firefighters were working to contain 29 major wildfires across the state. "There is something going on, that's for sure, man". To defend us from every attack, seen and unseen.
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Swift has just won the Best Director award at the recently concluded MTV 2020 VMAS for directing her music video for "The Man". That is exactly why they are an iconic couple who would be absolutely ideal for the movie " The Last Great American Dynasty ".