A landmark California bill gaining steam would make it illegal to engage in climate-change dissent, clearing the way for lawsuits against fossil-fuel companies, think-tanks and others that have “deceived or misled the public on the risks of climate change.” The first-of-its-kind legislation — Senate Bill 1161, or the California Climate Science Truth and Accountability Act of 2016 — is scheduled for floor action Thursday after clearing Senate committees in April and May. The measure would allow state and local prosecutors to pursue claims against climate-change skepticism as a violation of the state’s Unfair Competition Law [UCL], as well as extend...