Cows graze last week in the shadow of the Chalk Point Generating Station, a coal-fired power plant in Benedict, Md. Getty Images America’s push to cut carbon-dioxide emissions is partly intended to spur other large emitters—especially China—to cut their own emissions more aggressively to tackle climate change. But will it work? Other countries already have national policies aimed at cutting carbon-dioxide emissions, and they are much further along than the U.S. The world’s largest system for trading emission allowances is operated by the European Union, which covers more than 11,000 power stations and industrial plants in 31 countries, as well as airlines. And some countries have implemented carbon taxes. Persuading other countries to follow suit won’t be easy. Many developing countries are on a long-term path of trying to industrialize their economies and continue to resist big domestic cuts in carbon emissions. “No matter what your view of climate […]