Many celebrities have causes they believe in, and a great number of celebs are vocal about their concern for the environment. These fashionable celebrity women have put their beliefs to work with their own eco-friendly and organic clothing lines. Emma Watson "Harry Potter" actress Emma Watson is an avid supporter of eco-related causes. One of the nearest and dearest to the actress is UK-based People Tree . Watson serves as both spokeswoman and designer for the organization. Watson's People Tree clothing collection includes tops, bottoms, dresses, and accessories made from organic materials constructed by workers in certain Third World countries. The best part about People Tree, according to Watson, is that People Tree pays their workers a fair wage for their time. "This is not an Emma Watson clothing line. This is not a celebratory endorsement, this is something I thought was a really great idea and I wanted to help with. I just thought fashion ...