According to reports, the retail giant intends to run around three quarters of its transport fleet on biodiesel from January 2007, a move which it says will cut its greenhouse gas emission by 70,000 tonnes annually.

The BBC reports that Tesco will run its 2,000-strong fleet on 50% biodiesel from January 2007. Fifty percent biodiesel is made up of an equal mix of biofuel and convention fuel. Tesco will run specially adapted trucks that have been equipped to use the crop-derived greener fuel.

The supermarket giant believes that its initiative will cut the equivalent of the emissions of 20,000 medium-sized cars from the atmosphere each year.