One thing the graphs highlight is how little of the global warming gasses come from vehicles (or gasoline). While New York City is better than average in this regard, I think quite a few people would assume that if we all drove Priuses our problems would be solved. It would help a little, but we still have a huge amount of fossil fuel use in the other sectors.

Nationwide about 31 percent of net greenhouse gas emissions comes from transportation; in New York about 23 percent of greenhouse gas emissions comes from transportation.