Even Forbes is getting more enviro-friendly. But the greenest states are still mainly blue:
On top: Vermont, Oregon and Washington. All have low carbon dioxide emissions per capita (or "carbon footprints"), strong policies to promote energy efficiency and high air quality, as indicated by their major metro areas that are low in smog and ozone pollution. They're also among the states with the most buildings (on a per capita basis) that have received the U.S. Green Building Council's benchmark certification, known as Leadership in Energy and Environmental Design (LEED).
A clutch of Eastern states round out the top 10.
Christianist-majority states tend to care less about God's creation.