Well, mindset, a new coal plant may be slightly more efficient then an old one, but the costs of building it are massive, and environmental policies make sure that it isn't easy to do. Carbon capture is a nice idea, but you'd still have to store it. What would happen if the storage place got a leak? Then we're still screwed! No, I think it's better to develop alternative energy sources which are sustainable, such as solar, wind and nuclear fusion, in order to provide the energy we need.