New rules to cut carbon dioxide emissions will make it nearly impossible to build new coal power plants The Obama administration effectively blocked the construction of any new coal-fired power plants on Tuesday, introducing rules to cut carbon dioxide emissions from the next generation of plants. The proposed new standards would cut carbon dioxide emissions on new power plants in half and will, over time, help move America away from the carbon-heavy plants that currently produce nearly half of the country's electricity, Lisa Jackson, the head of the environmental protection agency, told a conference call with reporters. "Right now there...