Trump rips Democrats after UN climate committee drops extreme projections

President Donald Trump on Saturday criticized Democratic climate policies after scientists moved away from one of the most extreme global warming scenarios previously used in United Nations-backed climate modelling.

“Good luck! After 15 years of Dumocrats promising that ‘Climate Change’ would destroy the Planet, the United Nations TOP Climate Committee has admitted that their predictions (RCP8.5) were WRONG! WRONG! WRONG!” Trump wrote at Truth Social.

Trump accused Democrats of using climate fears to justify energy policies and government spending.

“For too long, Climate Activism has been used by Democrats to scare Americans, push terrible Energy Policies, and fund billions of dollars in bogus research programs,” he continued. “Unlike the Dumocrats who use the Climate Alarmism nonsense to push their GREEN NEW FRAUD, my Administration will always be based on TRUTH, SCIENCE and TRUTH!”

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Trump’s comments come as climate scientists move away from using the most extreme emissions scenario developed under the United Nations-backed Intergovernmental Panel on Climate Change (IPCC).

The IPCC’s worst-case scenarios, which included significant global temperature increases and sea level rises, included global crop failures and even potential extinction events on the scale of dinosaurs.

The scenario, known as RCP8.5 and later SSP5-8.5, predicted severe global warming consequences under extremely high emissions assumptions.

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EPA Administrator Lee Zeldin speaks alongside President Donald Trump in Roosevelt Room at the White House on February 12, 2026, and announces the reversal of the 2009 Endangerment Finding on climate warming emissions. (Anna Moneymaker/Getty Images)

According to GB News, the scenario is being phased out after researchers concluded it no longer reflects the most plausible trajectory based on renewable energy growth, emissions trends and climate policies.

Writing in the journal Geoscientific Model Development, the researchers said future climate scenarios should continue to include a wide range of outcomes, from severe warming to futures with lower emissions.

“For the 21st century, this range will be smaller than previously assessed: at the top end of the range, high emissions levels (measured by SSP5-8.5) have become unreasonable due to trends in renewable energy costs, the emergence of climate policy and recent emissions trends.”

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Trump’s post follows comments he made at the UN General Assembly in New York last September, in which he called climate change a “fraud.”

“I think this is the biggest fraud ever committed on the face of the earth,” Trump said at the time. “All these predictions made by the United Nations and many others, mostly for bad reasons, were wrong.”

“These were made by stupid people who cost their countries fortunes and gave those same countries no chance of success,” he continued.

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President Donald Trump speaks at the United Nations General Assembly in New York on September 23, 2025. Environmental and energy groups have called on the Trump administration to boycott the UN Climate Conference in November, according to a letter obtained by Fox Digital. (Michael Nagle/Bloomberg)

Trump’s comments were criticized by Democrats, including former Secretary of State Hillary Clinton, who called them “pure disinformation.”

“You know, at the UN yesterday, President Trump said, ‘Climate change is a hoax,’ because it’s nothing but complete disinformation,” Clinton said during the Clinton Global Initiative in New York. “This is a statement that is not true but is still being propagated.”

EPA Administrator Lee Zeldin later defended Trump’s climate-related statements in an interview with Fox News.

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President Donald Trump speaks at the 80th session of the United Nations General Assembly at the United Nations headquarters in New York City on September 23, 2025. (Chip Somodevilla/Getty Images)

“The president is absolutely right, and we’ve seen this in the name of climate change, where these left-wing policies are willing to cause extreme economic pain for people who can at least afford it,” he said.

Fox News Digital’s Emma Colton contributed to this report.