Actress Sigourney Weaver offered a dark picture of the world’s future during her speech at the Democratic National Convention Wednesday night. In her remarks, Weaver warned Americans that if we don’t act to combat climate change, doom is imminent. The DNC then aired a video featuring Weaver as the narrator. “It’s happening now,” Weaver says in the video. “The droughts, the record heat waves,” etc. “This is not something we’ve seen before,” she claims. “Our children are at risk.”