Twin fires in Northern California being treated as one are the largest wildfire in state history and by Tuesday had scorched 455 square miles (1,178 square kilometres) - almost the size of the city of Los Angeles.
The fires have spread rapidly in recent days to burn 283,800 acres of land - an area nearly the size of Los Angeles.
Gleick continued: "California's forests are burning because of past severe drought and current extreme temperatures and weather, worsened by human-caused climate change, which you think, in your fantasy world, doesn't exist".
LAKE ELSINORE, CA - AUGUST 06: A woman walks out of the water after taking a dip as smoke rises in the distance from the Holy Fire in Cleveland National Forest on August 6, 2018 in Lake Elsinore, California.
Two helicopters began dumping water, and several engines raced from the next valley, where the fire had jumped the line.
The Mendocino Complex Fire has destroyed 75 homes and forced thousands to flee.
Meanwhile, a new fire erupted south of Los Angeles in Orange County on Monday and quickly spread through the chaparral-covered ridges of the Cleveland National Forest. That fire ended up burning 281,893 acres before being contained.
Fire officials have condemned the presidents comments, saying that they are not in fact struggling to source enough water to contain the fires. By Monday, it has become the second-largest California wildfire on record, surpassing the size of a massive blaze that killed 15 people in 2003 in San Diego County.
The Mendocino Complex fire north of San Francisco was still growing this week as it broke the record set eight months ago. A total of 9,300 structures are threatened, 68 homes have been destroyed and 12 other homes have been damaged, the agency said.
Gilless said Trump's language about water "being diverted into the Pacific Ocean", doesn't make sense, as water naturally flows to the ocean.
What are firefighters doing to stop the Mendocino Complex Fire?
As fires grow to historic sizes in California, President Trump tweeted that the state is "foolishly" diverting "vast amounts of water from the North" into the Pacific Ocean instead of using them to fight its wildfires.
The Department of Defense has also provided five aircraft to aid in fighting the wildfires, four C-130 cargo planes outfitted with Modular Airborne Fire Fighting Systems and an RC-26 surveillance plane, being used to monitor and map wildfires, Manning said. Jerry Brown (D) said Saturday in a news conference about the fires, adding that the disasters offer a chance for people to overcome ideological divisions.