Companies like the BioFuel Energy and Archer Daniels Midland, well organized as the National Biodiesel Board and subsidiary groups, welcome their government-dictated business.

FORBES: The Federal Government's Biodiesel Mandate Ensures Higher Prices All Around

But he also said it was not clear that the board was accountable to the Welsh government, and he would welcome "clarity".

BBC: Magor Marsh. Pic: Rob Waller

So right across the board, I think, in governments and in public opinion, we're seeing a welcome.

NPR: Europe Reacts with Relief, Optimism to U.S. Changes