Will the world follow Canada’s example in fighting climate change? It should, according to the editorial board of Bloomberg News.Prime Minister Justin Trudeau ruffled feathers last week by giving the provinces and territories two years to sharply cut carbon emissions to achieve targets to which Canada committed itself at last year’s global-warming conference in Paris. Fortunately, even those Canadian jurisdictions at odds with Trudeau seemingly acting by fiat last week have impressive CO2-emission reduction schemes underway. Ottawa has no desire to interfere with those. The PM does realize that nothing big is achieved without a deadline. In its editorial, “Canada Sets the Trend on Climate,” Bloomberg said Trudeau’s approach (a) signals to the world Canada is serious about meeting its Paris obligations, (b) shows that even a fossil-fuel producing jurisdiction can summon the will to tax carbon, and (c) is revenue neutral, not a tax …