Danielle, I do agree with increased efficiency but that should save money not add a premium to the price. I like the blue tech diesel technology but you simply aren’t going to make up for the premium paid by fuel savings not in 5 years maybe in 10 years. Plus CO2 is a trace element in the atmosphere making up less than 1%, I see no grave danger. CO2 has been at these levels before. Same with florescent light bulbs I have friends that replaced every bulb in their house and saw no electricity savings. I think consumers should be careful and aware that most green products are not what they claim to be. I don’t think it’s common sense based, I think there a lot of misconceptions blindly accepts as common sense. What old world that’s going down? This sounds more like the old economy and new economy concepts of the 90’s in the .com bubble.