I've said it many times: Clean coal really is a contradiction in terms and that the continued fascination with it is just a distraction from getting us away from using one of the most polluting fuels on the planet. Though it could get worse, we could increase tar sands production... But don't just take my word for it. In this video clip Robert F Kennedy Jr waxes on about the myth of clean coal, the future of renewable energy and how if the subsidies that fossil fuels get were removed "coal and oil would be out of business in a couple of years." It's pretty basic for your dedicated TreeHugger reader but it's worth a watch.