There's someone I know that claims they are an eco warrior. They use their bike a lot, recycle, go on about washing at 30 degrees, never taking a supermarket bag and buying a bag made of recycled crisp packets from homeless people in Peru.
At the same time, they eat ready meals (and are obsessive about recycling the plastic) buy new apple products every year, heat the house so they can wear a T-shirt in the winter and installed air con for the summer. They also used to be very anti cars, until they were given one...
I just smile through their eco rants, would it be rude to tell them they are very hypocritical?