Yeah, if Honda thinks they are running a 'green' car then they are awfully wrong. They end up wasting so much energy and materials to go racing that it is really a joke. Maybe if they had an electric vehicle or some kind of regen braking then you could brag about 'green' technology, but as the car stands right now it is far from 'green'.
There are plenty of other superficial reasons why Google Earth sponsorship is good for honda. They are both Internationally known, and I am willing to bet that aspect will be the one that is pushed during the official presentation of the sponsor. Anyways, no matter how superficial the relationship between the said sponsor and the team may be, it is still better than being sponsored by a cigarette brand.