By STEVE PEOPLESBOW, N.H. (AP) â¿¿ President Barack Obama's push to fight global warming has triggered condemnation from the coal industry across the industrial Midwest, where state and local economies depend on the health of an energy sector facing strict new pollution limits. But such concerns stretch even to New England, an environmentally focused region that long has felt the effects of drifting emissions from Rust Belt states. Just ask Gary Long, the president of the Public Service Co. of New Hampshire, the state's largest electric company. Long says the president's plan to impose limits on carbon dioxide emissions suddenly raises questions about the fate of the state's two coal-fired power plants, electricity rates for millions of customers and the ability to find new energy sources. And he notes that New England has already invested billions of dollars in cleaner energy, agreed to cap its own carbon pollution and crafted plans to import Canadian hydroelectric power. "New Hampshire's always been ahead of the curve," he says. "Does no good deed go unpunished?" Long raised those concerns in the days after Obama launched a major second-term drive to combat climate change, bypassing Congress by putting limits for the first time on carbon pollution from new and existing power plants. At the core of his plan are controls on power plants that emit carbon dioxide â¿¿ heat-trapping gases blamed for global warming. Obama said the changes would reduce domestic carbon dioxide emissions by 17 percent between 2005 and 2020 and "put an end to the limitless dumping of carbon pollution." The program also is to boost renewable energy production on federal lands, increase efficiency standards and prepare communities to deal with higher temperatures. While the specific impact of Obama's plans varies from region to region, energy industry officials across the nation warn of likely plant closures and electricity rate spikes, illustrating the practical and political challenges Obama faces while balancing the nation's tepid economic recovery with an issue he says has dire implications for the planet's future. Republican leaders, many still skeptical of the existence of man-made climate change, have seized on the potential short-term economic impact of what some call the president's "war on coal" to criticize him and fellow Democrats.