Leonardo DiCaprio hopes Trump will make the 'moral decision' to stay in the Paris Agreement

As the world waits to hear President Donald Trump's decision on whether or not the United States will remain in the Paris Climate Agreement today, celebrity activists like Leonardo DiCaprio are weighing in the last few hours before the announcement.

On Thursday, the actor and environmentalist encouraged Trump to make the "moral decision" to stay in the agreement.

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The president is set to announce his decision at 3:00 P.M. ET on Thursday, and White House sources have suggested that he intends to pull the U.S. from the treaty. Leaving the Paris Agreement would put the U.S. in line with Syria and Nicaragua, the only two countries who've rejected the treaty.

Katy Perry is amongst other celebrities who've voiced their support for staying in the Paris Climate Agreement.

"I ask humbly to remember your children, their children & all children will be left to live w/the results of your decision," she tweeted at the president.

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