There's a piece from a speech by Theresa Villiers on Con Home which certainly makes it sound like they are.
But isn't it just the same as the Government's policy, with a slightly different spin on?
Although we believe that biofuels can have a role to play in tackling climate change, there must be safeguards to ensure that they come from sustainable sources...
[The RTFO] has failed the environment because it contains no effective measures to guarantee that the biofuels it promotes come from sustainable sources."
Question: What are sustainable biofuels? The EU definition?
Remember the two basic problems:
1) It is estimated that up to 80-90 % of all the timber that comes out of Brazil and Indonesia are illegally logged, and biofuels are much harder to trace back to their origin. How will you find out if your biofuels are "sustainable"?
2) And what is "sustainable" anyway? If it just means not clearing virgin forest to plant biofuels what's to stop biofuels going on to agricultural land and the forest being hacked back to replace the land for food crops? Biofuels must inevitably compete for land, and drive up food prices, and therefore promote agricultural extensification one way or another.
T Villiers is very bright indeed. But the Tory line - although it's moving in the right direction- is still far too cautious.