In less than a month, Canada has executed a complete about-face on global climate change . With the defeat of the Conservatives in the October general election, out went nearly a decade of Canada making itself something of a global outcast on the issue. The record of the former prime minister, Stephen Harper , on climate change was marked by retreat, foot-dragging, and hand-wringing over the economic consequences of moving too quickly. The new prime minister, Justin Trudeau , and his Liberals are now trying to make up for lost time. And along with the left-leaning New Democrats, who wrested power from the Conservatives in the oil -rich province of Alberta last spring, they have now moved climate-change policy to the […]