Why subsidise biofuel motorists?

YOUR leader (November 19) makes the case for “encouraging biofuels”.

But if, as it says, we are worried about soaring oil prices, sustainability and the environment we should be discouraging oil consumption, which is quite a different matter.

You make the comparison with smoking, but we discourage smoking by making it more expensive and more inconvenient, not by paying people to smoke low-tar or filter cigarettes.