Since the expressions “global warming” and “climate change” do not frighten people enough, activists are proposing a shift in language to “climate crisis” or “environmental collapse,” with the help of advertising consultants. Neuroscience research suggests that “global warming” and “climate change” do not produce a powerful enough reaction in people, whereas “climate crisis” got “a 60 percent greater emotional response from listeners” according to a recent study. Environmental lobbying has reportedly yielded a 15-point increase in the share of Americans who believe that climate change is a serious problem, but activists are looking for ways to boost that number still...