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Originally Posted by Hummer Aficionado_VT
Not to brag, but I once got into a heated arguement with my history teacher as to why his Prius is causing more environmental dismay than my eventual H2ever will!  
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How's that? Hummer require more steel and materials for construction and it uses at least three times as much gas and emits at least three times as much co2. If you're citing the Dust to Dust article, that's now being refuted by peer reviewed studies. The results for this article used arbitrary life terms for both the Hummer (almost 300,000 lifetime miles) and the Prius (just over 100,000 life time miles) vehicles and other methods of analysis are now being called into question. A subsequent peer reviewed re-analysis has cited that the life cycle energy requirements for the Prius hybrid (as well as any small car) are far lower than that of Hummers and SUV's.