Hollywood’s biggest stars took to social media Wednesday to respond harshly to news that President Donald Trump has decided to withdraw the U.S. from the Obama-era Paris Climate Agreement.

President Trump seemed to affirm the reports, tweeting Wednesday that his announcement was imminent.

“I will be announcing my decision on the Paris Accord over the next few days,” he wrote. “MAKE AMERICA GREAT AGAIN!”

I will be announcing my decision on the Paris Accord over the next few days. MAKE AMERICA GREAT AGAIN!

Actor and climate change activist Mark Ruffalo said Trump “will have the death of whole nations on his hands” if he decides to pull the U.S. out of the agreement.

If this is true he will have the death of whole nations on his hands. People will be looking to the USA for retribution for what they loose.

Actor Don Cheadle used the breaking news to attack the president’s 11-year-old son, Barron.

“If you care about your kids maybe reconsider your Avengers actor wrote Wednesday.

Other stars, including Beauty and the Beast star Josh Gad and talk show host Chelsea Handler‏, referenced children and their future on Earth as the reason President Trump should consider keeping the U.S. in the Paris agreement.

Our children & our grandchildren have all just been handed a dark future because of a man who tweets at 3:00 AM & doesn’t “trust” science 😉👌

Yeah, who cares about climate change? Only every single person with a child. Republicans in congress need to end this childish mayhem.

Below is a roundup of the reaction to the news of Trump’s decision from some of the entertainment would’s biggest stars.

2 Ppl of The🌎.Pls Know There R “MILLIONS”Of Us 🐝ing Held Hostage By Insane DICTATOR‼️He Trashes🇺🇸’n Values &Admires Killers #ParisAccordNOW

2/ what is diabolical about this is that these leaders know better. They know science is real. They know climate change isn’t a hoax.