When Veruca Salt threw a hissy fit, she at least jazzed it up with a catchy song. No such luck with Greta Thunberg, the teenage Swedish climate activist and sometimes student. Greta is all frowns, all crossed arms, and she’s not here to play. Having sailed by an emissions-free yacht to New York, she delivered her now-infamous sermon for the repentant Luddites at the UN Climate Action Summit (available here). “How dare you?” she thundered repeatedly, while meandering through a sloppy mess of pseudo-statistics meant convince us that she is as capable of a quick Google search as the rest...