Just read that, how come transportation (in all it's forms, not just us lot) accouonts for 1/5 of all the greenhouse gasses?
Have they any idea how much polution is created making electricity?
Anyway, take it with a pich of salt, it's written by people with a vested interest in the oil and chemical industry, just like all the people crying out about global warming make their living from crying out about global warming. Their study shows it would be vetter not to plant rapeseed but to use dinosaur juice and plant the same amount of land with trees. Like that's going to happen.
That brings about a whole new way of thinking though, "it's alright for me to drive a Porche, I've got a big garden.........
.........with an orchard".