He heads up an eco-charity that he named after himself, he's best mates with Al Gore, he only drives hybrid cars …and he flies in a private jet.
Leo's been living here in Oz for a few months filming The Great Gatsby, but he had to pop back to the states last week to launch his new movie J.Edgar.
With his promotional work done, the megastar and his entourage returned from New York to Sydney yesterday in a private jet.
Apparently Leo occasionally flies privately when he has to get to "remote locations". Er, Sydney?
In Leo's defence though, he did have his entourage with him. …And his friend Ethan Suplee (My Name Is Earl) hitched a ride just for the hell of it - so we guess that counts as 'car pooling'?