In the wake of President Trump’s exit from the Paris climate treaty, reactions from other quarters were predictably swift, nasty, sanctimonious and hypocritical.Al Gore paused near one of the private jets he takes to hector lesser mortals to say the action will bring “a global weather apocalypse.” Billionaire Tom Steyer got rich selling coal but called the President’s action “a traitorous act of war.” Actor-activist Mark Ruffalo railed that Trump has “the death of whole nations on his hands.” Michael Moore said the action was “a crime against humanity.” Former President Obama said it threatened “the one planet we’ve...