Sorry, I am not taking the blame for all of the world's problems!
We do our part, in many ways, but my DH won't give up his SUV and I don't expect him too. He feels like the days he rides to work makes up for some of it. We do want our next move to be closer to stores and flatter (i.e. rideable for some grocery shopping), so we can lead a more "sustainable" lifestyle. But, I am not moving into the city and giving up my car.
My older son is very much like all of the younger people in those articles. They have one car, he takes public transp. or rides to work, and they have a garden, buy a CSA share, etc. However, they do have a house, and are not transient like so many others in their early 30s.