Donald Kennedy, Editor-in-Chief of Science magazine, thinks there is a “biofuels conundrum”. He agrees that growing corn for ethanol results in huge distortions and problems elsewhere. Ethanol from sugar cane is better, but blocked by corn-state Senators in the US. Palm oil, as biodiesel, is better yet, but still carries considerable downsides. So, Kennedy says, we need more investment on research into biofuels derived from cellulose. Fair enough. But not a single mention of actually reducing consumption of liquid fuels. Not one word. I guess Kennedy, like so may others, isn’t quite ready to sign the bio-temperance pledge.