Dear Tim Bousquet,
I enjoyed your article "The 17-tonne challenge," but I think you inadvertently gave diesel a bad name. When you compared the diesel commercial truck on a 3,600km trip to a 25mpg commuter vehicle, I realized you were making an argument for buying local to reduce greenhouse emissions. But when you compared the diesel emissions to gasoline emissions per litre, you may have left readers thinking gasoline is a better greenhouse fuel, which would be false. Because diesel vehicles burn less fuel than the same-sized gasoline vehicles, they actually emit significantly less C02 than gasoline vehicles.