(CNN) Before boarding Marine One on the way to a political rally in Mississippi on Monday, President Donald Trump answered a few questions from reporters. When asked about a 1,600-page climate change report compiled by 13 federal agencies and over 300 leading scientists, Trump responded that he did not believe the report's findings, including that the damage from a warming planet would reduce the US economy by 10 percent by the end of the 21st Century. "I don't believe it," Trump responded.

White House Press Secretary Sarah Huckabee Sanders reiterated the President's comments during a press briefing a day later, stating that the report is "not based on facts" but based on "the most extreme modeled scenario, which contradicts long established trends."

The topic of climate change is obviously politically charged. The report, put together with the help of 1,000 people, including 300 leading scientists, roughly half from outside the government, is designed to cut through that partisanship. Dubbed the Fourth National Climate Assessment, the report was issued by the US Global Change Research Program, a team of 13 federal agencies, and is the second of two volumes.

Given the President's past denials of climate change and his administration's efforts to reverse the polices of the Obama administration to address its effects, the report puts the White House in an awkward position of having to disavow the research of its own government. Here is a fact-check of some of its responses.

Fact check -- Sanders: the "report is based on the most extreme modeled scenario"

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