From hard Brexiters to Donald Trump, nationalists who deny the existence of manmade global warming will eventually have to face the facts

A protest against Donald Trump’s decision to withdraw from the Paris climate agreement, Chicago, June 2017
‘Nationalists, gripped by an isolationist logic, are unable or unwilling to face the reality of global warming’. A protest against Donald Trump’s decision to withdraw from the Paris climate agreement in Chicago. Photograph: Scott Olson/Getty Images