16-yr-old climate activist stares at Trump at UN; video goes viral

A video showing 16-year-old climate activist Greta Thunberg staring at US President Donald Trump at the UN has gone viral. Trump has in the past called climate change a "hoax". He had pulled the US out of the Paris climate deal in June 2017. Thunberg had condemned world leaders during her speech at the UN Climate Action Summit 2019.