Aha a word of truth

Tucked down at the bottom this BBC article on the Fuel Demos that have been going on today is this telling quote:

Justice Secretary Jack Straw told the BBC he "fully understood" the hauliers' concerns, but "government revenues have to come from somewhere".

So, it isn't anything to do with the environment then; as we all suspected, it's just a tax-raising ploy and the environment is just spin.