Remember when showing up on a 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 whole-heartedly embraced the green movement. We asked some of our favorite TV stars the kinds of measures they take at home and on the job to reduce their carbon footprint. The results were both informative and pleasantly surprising.

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