My guest this week is Stephanie Feldstein, Director of the Population and Sustainability Program at the Center for Biological Diversity. Mother Earth cannot continue to sustain the current rate of population growth, and the 7.2 billion people on the planet are depleting natural resources. Many species are becoming extinct because of human activity that encroaches on their habitats. Stephanie works on campaigns to build awareness of the need to slow down population growth and to help save endangered species. #CrowdedPlanet campaign encourages people to take photos of daily life events that depict overcrowding, and post and tweet them. Recent photos include photos of traffic jams, crowded subways and the parking lots at malls. There is also the “endangered species corundum” campaign, which hands out free condoms with slogans and pictures of endangered species on the wrapper. My favorite slogan is “Safe intercourse saves the Dwarf Seahorse.” Tune in to find out what Stephanie’s favorite slogan is. For more information on how you can get involved with issues of overpopulation and animal advocacy go to: www.biologicaldiversity.org