I don't deny global warming, but what is being done about it is crazy.
Personally I think it's what's not being done about it that's crazy.
Back on topic: I agree that a rethink of personal transportation is required. I think it is more important to rethink the things that cause us to need or want cars. Living in a different town from one's workplace is rarely if ever required. The centralisation of services that widespread car ownership has permitted (think malls or retail parks) is amongst the myriad of reasons we feel we need cars. Research like this is useful and worth while, but as others have pointed out what's really needed is a more fundamental rethink. I'd like to see us reordering our societies and lives in such a way that we don't need cars.