Regardless of where you stand politically, I think it's safe to say that we all care about the environment and have a responsibility to maintain it for future generations. Which is why WalletHub has conducted several studies to determine how Americans are "promoting an environmentally friendly lifestyle".

Three Colorado cities have made the Top 100 list, but unfortunately, they're not as high as we probably would have liked. Colorado Springs ranked at No. 45, Denver at 51 and Aurora at 52.

greenest cities, greenest states, energy-efficient