@Richard Austin

The trouble with biofuel is that it creates CO2 when burn, just as well as coal, gas or petrol does. Which means it is a non-solution to greenhouse gasses issue. Maybe thermonuclear fusion is a long term solution, but we are half a century (or more) from it. In the mean time we need short-term solutions and my vote is for more effort on research (of clean energy sources) as well as using nuclear for a while.