Not Just For Greens Anymore: More Big Corporations Are Backing Clean EnergyNext week, the Environmental Protection Agency is expected to outline what could be the Obama Administration’s most influential policy on climate change. Called the Clean Power Plan, the rule is aimed at reducing harmful emissions from existing electric power plants—the country’s largest source of carbon dioxide, the most significant greenhouse gas. The plan will task each state with coming up with a strategy and take action to reduce its carbon emissions from power plants by up to 30 percent by the year 2030.