Cameron Diaz is featured in a new MTV series that has Hollywood celebrities praising the developing world's primitive lifestyles as earth-friendly, despite those poor nations' high infant mortality rates and short life expectancies. The eco-tourism show, called "Trippin'," premiered on March 28 and was heavily promoted in the runup to Earth Day. The show encourages environmental awareness and lauds traditional tribal lifestyles, which lack running water, electricity and other basic infrastructure. Diaz and a rotating crew of "her close, personal friends [who] think globally and act globally," tour developing nations, including Nepal, Bhutan, Tanzania, Honduras and visit remote villages...