This case is reportedly the first to hold Big Oil accountable for an individual’s death in a climate-related disaster. Can a lawsuit hold fossil fuel companies responsible for climate-change and its impact? Misti Leon is suing several big oil companies — including ExxonMobil, Chevron, BP, and others — over the 2021 heat-related death of her mother Juliana, who died during a record-breaking heat dome over the Pacific Northwest. Moreover, his administration is suing states for trying to enforce environmental regulations aimed at oil companies. Numerous states, counties, cities, and tribal governments are suing Big Oil, and making headway.