Are biofuels made from plants the 21st century version of flower power? It just may be, as the use of biofuels is increasing in airplanes to reduce the carbon footprint left by aircraft.
A fuel source that absorbs carbon dioxide while growing and then releasing it when it is burned could be the optimal eco-friendly solution.
Unlike conventional aircraft [that] burn kerosene – a polluting fossil fuel - Leslie’s plane was powered by fuel derived from rapeseed oil. However, it could equally have been powered by one of a number of biofuels made from algae, flax, coconut husks or even from used cooking-oil.