Los Angeles Mayor Eric Garcetti on Sunday rebuked President Trump's claims that the California wildfires are simply a result of poor forest management, telling CNN's "State of the Union": "This is climate change and this is an administration that's put its head in the sand."

Why it matters: There's a scientific consensus that climate change and the hotter and drier conditions it brings are among the forces that increase fire risks and severity. President Trump has questioned the existence of human-caused climate change and has sought to withdraw the U.S. from the Paris Climate Accords.

What they're saying: "I listen to fire professionals, not the president of the United States or politicians when it comes to what actually causes these fires," Garcetti said. "It's been very clear that years of drought, whether it's too much water and too much rain in parts of our country, or too little. This is climate change."

• "Talk to a firefighter if you think that climate change isn't real. And it seems like this administration, the last vestiges of the Flat Earth Society of this generation," he continued.
• "We need real action. We need to reduce the carbon emissions that we have. And we need to make sure we can manage that water. And this is not about just forest management or raking. Anybody that lives in California is insulted by that, quite frankly. And he keeps perpetrating this lie."

The big picture: Trump plans to visit California on Monday after facing criticism for weeks of silence about the devastating West Coast wildfires, which have razed record amounts of land and forced hundreds of thousands of people from their homes.