A man making his own biodiesel. Photo by Mike Murrow from Flickr.

In Kilmarnock, Scotland, bus passengers will soon be able to pay their fare with used cooking oil instead of cash. Eight buses carrying over 15,000 passengers a week will run on 100% biodiesel generated from used cooking oil and tallow, reducing carbon dioxide emissions by an anticipated 82% and virtually eliminating air-polluting sulfur emissions. As an added incentive to boost the program during its six month trial period, free containers will be provided to those who want to take their used cooking oil to a nearby recycling plant in exchange for discounted bus fare. Read the rest of this entry »

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