Caroline Pidgeon has spoken out about the continued tax break for "red diesel" used to power industrial refrigeration units, when much cleaner alternatives exist.
"It is appalling that the government has decided against closing the tax break.
"Ending the anomaly of the low taxation of red diesel would immediately send out incentives for new technology to be adopted.
"By their failure to take action the Treasury and Defra are defending a tax break which leads to more polluted air."