Harry Sterling: Trump's disdain for climate policy should concern us all

The late former prime minister Pierre Trudeau once described living next door to the United States as like sleeping with an elephant — no matter how friendly and even tempered the beast, one is affected by every twitch and grunt.
That the US influences global events for better or worse is a reality current PM Justin Trudeau and other international leaders increasingly face as they find themselves confronting President Donald Trump’s disruptive and reckless policies. 
His threat