A major scientific report issued by 13 federal agencies on Friday presents the starkest warnings to date of the consequences of climate change for the United States, predicting that if significant steps are not taken to rein in global warming, the damage will knock as much as 10 percent off the size of the American economy by century's end.
The National Climate Assessment was written long before the California fires and the hurricanes.
The report says warming-charged extremes "have already become more frequent, intense, widespread or of long duration".
"This report underscores what we are already seeing firsthand: climate change is real, it's happening here, and it's happening now".
But the White House dismissed the congressionally mandated reported as inaccurate. It also details how people's health and different parts of the economy are being hurt.More news: Jimmy Butler drills game-winning three at OT buzzer
"Low-income communities and some communities of color are often already overburdened with poor environmental conditions and are disproportionately affected by, and less resilient to, the health impacts of climate change", the report stated. "That means we have to focus on us", he said.
According to the report, the climate change is expected to cause growing losses to American infrastructure and property and also impede the rate of economic growth over this century.
Brenda Ekwurzel, director of climate science at the Union of Concerned Scientists and one of the report's authors, said the report made it clear that climate change was not "some problem in the distant future".
"The impacts of climate change beyond our borders are expected to increasingly affect our trade and economy, including import and export prices and U.S. businesses with overseas operations and supply chains".
The scientists who worked on the report implored the USA not to ignore greenhouse gas emissions, which are expected to cause "substantial net damage" to the country's economy throughout the century. It was originally scheduled for December.
Earlier this week Trump mocked climate science, tweeting about cold weather in the Northeast and asking "Whatever happened to Global Warming?"More news: Samsung discounting Galaxy S9, S9+, and Note 9 by $200
Wired defines climate change as "the catch-all term for the shift in worldwide weather phenomena associated with an increase in global average temperatures".
Releasing the report on Black Friday "is a transparent attempt by the Trump Administration to bury this report and continue the campaign of not only denying but suppressing the best of climate science", said study co-author Andrew Light, an worldwide policy expert at the World Resources Institute.
A report released in October by the Intergovernmental Panel on Climate Change (IPCC) - the leading worldwide body evaluating climate change - said it could only be stopped if the world made major, and costly, changes.
During a press conference Friday, officials behind the report repeatedly declined to answer questions about the timing of its release and why it contradicts public statements from Trump. "But the severity of future impacts will depend largely on actions taken to reduce greenhouse gas emissions and to adapt to the changes that will occur".
"There are no credible alternative human or natural explanations supported by the observational evidence", the report says.More news: Spotted: Deepika Padukone and Ranveer Singh twinning in white