President Donald Trump appeared to mock Greta Thunberg after her emotional speech to the United Nations on Monday.
Thunberg, 16, was tearful and her voice broke as she chided world leaders for having "stolen my dreams and my childhood" with their inaction on climate change.
The Swedish activist founded the school strike campaign to raise awareness about the climate emergency and the urgent need for governments to take comprehensive action quickly.
Trump wrote on Twitter alongside a clip of Thunberg's speech.
He tweeted after a video of Thunberg glaring at him as he entered the U.N. headquarters went viral on social media.
Trump has questioned climate change science and sought to roll back environmental protections, as well as encouraged greater production in the fossil fuel industry.
"She has more class in her little finger..." tweeted Kirsten Oswald, a former U.K. politician. »