My dad's car lease is going to be up in a few months I believe very strongly in global warming and want to...

Reduce my families carbon footprint (and saving a little money on gas wouldn’t hurt either) Heres the deal my dad Looked around and said It’s not worth it to buy a hybrid since the hybrids are generally more expensive then their regular gasoline counterparts. He also said that since it’s so much more it wouldn’t pay to get a hybrid since the gas payoff wouldn’t exceed the difference between the hybrid and the normal car until he had to return the car. Any ideas?