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Peapod          Be lazy, be green.

Do you drive to the grocery store? That’s not very green, nobody needs to tell you that. New research suggests you could halve the carbon footprint of your shopping just by putting your feet up and getting your groceries delivered to your door.

That’s according to calculations by University of Washington engineers. They point out in a paper published in the Transportation Research Forum journal [PDF] that delivery trucks follow efficient routes as they drop off groceries at customers’ homes.