George Clooney Targets Trump, Climate Change Skeptics and Anti-Vaxxers in Mock PSA

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"Tragically, though, the volumes of invaluable knowledge gathered over centuries are now threatened by an epidemic of dumb f—ing idiots saying dumb sh—," Clooney said about people not believing science in a fake PSA for 'Jimmy Kimmel Live' on Tuesday.

George Clooney mocked "dumb fucking" idiots including Donald Trump, Oklahoma Sen. Jim Inhofe and anti-vaxxers in a fake PSA in support of science. The blunt video premiered on Tuesday's episode of Jimmy Kimmel Live!.

The host introduced the clip by sharing that the United Nations had released a report that the climate is in worse shape than at any other point in history. After calling out the Trump administration for not working to protect the planet, he shared the mock PSA.

The PSA opened with Clooney introducing himself as an actor, director and two-time sexiest man alive titleholder. He stood in front of a white backdrop and appeared in a suit.

The actor began by sharing that science has explained a number of important topics, including what subatomic particles are and the majesty of space. "Science enables us to cure diseases, to communicate across great distances and to fly," he added.

"Tragically, though, the volumes of invaluable knowledge gathered over centuries are now threatened by an epidemic of dumb fucking idiots saying dumb shit," he said as clips of members of the Trump administration appeared onscreen. A clip of Inhofe holding up a snowball and attempting to deny the existence of climate change followed.

"Dumb shit is highly contagious, infecting the minds of even the most stable geniuses," Clooney continued, referencing something Trump once called himself before sharing a clip of the president mocking the idea that the sound of a windmill can cause cancer.

Clooney added that "rampant dumbfuckery" threatens our health, planet and security. He then shared that the purpose of the fake PSA was to support the United to Defeat Untruthful Misinformation and Support Science initiative, which was abbreviated as UDUMASS.

"Your generous contribution to UDUMASS will provide desperately needed knowledge to dumb fucking idiots on Facebook and Twitter all around the world," he said. "Just $20 will convince one fucking idiot that climate change is real; $50 will teach five brainless dumbfucks to vaccinate their kids and $200 will teach 10 dipshit knuckle-draggers that dinosaurs existed, but not at the same time as people."

"Together we can win the fight against dumbfuckiness, but we can't do it alone," he said before he prompted viewers to call a phone number. "The world needs your support, UDUMASS."

The PSA isn't the first time Clooney has been outspoken against the Trump administration. In 2017, Clooney used his acceptance speech at the César ceremony in Paris to speak negatively about the president. "As citizens of the world, we're going to have to work harder and harder not to let hate win," he said. "Love Trumps hate, courage Trumps fear and always right Trumps wrongs."

The anti-vaxxers comment in the fake PSA came just days after an audience attending a midnight showing of Avengers: Endgame in California were informed that they were at risk of contracting measles. The Orange County Health Care Agency (HCA) confirmed that a 20-year-old audience member had the disease, which put other moviegoers in jeopardy.

The Centers for Disease Control and Prevention reported that that there have been 764 cases of measles across 23 states this year, with the two most common groups to contract the disease being kids under the age of four and those who aren't vaccinated.

In addition to California, outbreaks have also been reported in Arizona, Colorado, Connecticut, Florida, Georgia, Illinois, Indiana, Iowa, Kentucky, Maryland, Massachusetts, Michigan, Missouri, Nevada, New Hampshire, New Jersey, New York, Oregon, Texas, Tennessee and Washington. In light of the outbreaks, states including Colorado, Maine and New York have considered implementing bills to tighten vaccine laws.

Watch the full fake PSA below.