While Prime Minister Justin Trudeau will never admit it, the 2015 Paris climate treaty Canada signed with great fanfare died last week.It died because of the release of U.S. President Donald Trump’s 2018 budget plan.While Trump has to get it through the U.S. Congress, which means parts of it are unlikely to survive, his clear intention to gut U.S. climate change policy by dismantling the Environmental Protection Agency spells the death knell for the Paris treaty.Trump is proposing deeper cuts to the EPA than any other government agency, reducing its $8.2 billion budget by 31%, laying off 19% of its...