by Marjorie Kase

Remember when showing up on the red carpet in a hybrid was a political statement? Now it's one if you don't. What was once a cause célèbre has now become the norm as the entertainment industry has embraced the green movement. We asked some of our favorite TV stars what measures they take to reduce their carbon footprint. Their answers were both informative and surprising.

What little things can you do to help the environment? Find out in our iGo Green section. Plus: Pair hot stars like Cameron Diaz and Leonardo DiCaprio to their green cause in Celebrity Matchmaker: Green & Famous.