Meet the Center for Biological Diversity's Population and Sustainability Team:


Stephanie Feldstein, Population and Sustainability Director,

leads the Center’s work to highlight and address threats to endangered species and wild places from runaway human population growth and overconsumption. Previously Stephanie worked for, where she helped hundreds of people start and win online campaigns to protect wildlife. She holds a bachelor's degree from the University of Michigan and has years of experience in organizing, outreach and communications, with a focus on animals and the environment.


Contact: Portland, OR, 734.395.0770,



Jennifer Molidor, Senior Food Campaigner, drives the Population and Sustainability program's Earth-friendly Diet initiatives related to meat production and consumption, industrial agriculture, overconsumption and population growth, and the impact of our food systems on wildlife and the planet. She helps lead our sustainable food initiatives, including the Take Extinction Off Your Plate campaign. Before joining the Center in 2015, she worked for several years on a number of food, wildlife, and environmental campaigns as the staff writer for the Animal Legal Defense Fund; she holds a Ph.D. in English and Irish studies from the University of Notre Dame.


Contact: Santa Rosa, CA,


Melissa Amarello, Population and Sustainability Communications Associate, provides communications support and manages social media for the Population and Sustainability program. Before joining the Center in 2014, she worked on a variety of projects on natural history and conservation of birds and reptiles in Kentucky, Arizona, California and Mexico. More recently she cofounded Advocates for Snake Preservation to change how people view and treat snakes. She holds a bachelor's degree in wildlife, watershed, and rangeland resources from the University of Arizona and a master's degree in biology from Arizona State University.


Contact: Tucson, AZ, 520.623.5252 ext. 319,


Jessica Herrera, Media Specialist, helps coordinate and plan the Center’s media and communications strategy for the Population and Sustainability Program. She brings expertise from her diverse writing, labor organizing and academic experiences. Prior to joining the Center, she was a deputy press secretary for the Sierra Club. She holds a master’s degree in international studies from the Johns Hopkins School of Advanced International Studies.


Contact: Austin, TX, 520.260.1725,


Leigh Moyer, Population Organizer, develops and runs campaigns to draw attention to and prevent wildlife and habitat loss due to unsustainable human population growth and overconsumption. Prior to joining the Center, she was an organizer with the Service Employees International Union and also served with AmeriCorps' Youth Volunteer Corps. A Tucson native, she graduated from the University of Arizona in 2011 with a degree in American history and linguistics.


Contact: Tucson, AZ, 520.623.5252 ext. 313,


Greer Ryan, Sustainability Research Associate, provides scientific and policy support to the Center’s Population and Sustainability team. She holds a bachelor’s in molecular environmental biology from the University of California at Berkeley and a master’s in environmental science from the School of Public and Environmental Affairs at Indiana University. In addition to interning with the Center in 2013 before she joined us on staff, she worked as a research assistant in several environmental science labs and as an intern at NRDC.


Contact: Portland, OR, 812.345.8571,


Chad Tudenggongbu, Senior Renewable Energy Campaigner, leads the Population and Sustainability program’s campaign to promote a wildlife-friendly renewable energy future. Previously Chad worked at ICLEIUSA as a renewable energy program officer, where he led the U.S. Department of Energy’s SunShot Solar Outreach Partnership’s resource development and dissemination. He has also been a senior climate change and energy project manager for the British Consulate-General in Chongqing, China. He received his bachelor's in cultural anthropology from Duke University and a master's in environmental policy from Bard College.


Contact: MA, 917.558.0849,


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