Gregory A. Smith is the associate director of research at the Pew Research Center. He’s an expert on religion in America. Arrange interviews through Anna Schiller.

The American Community Gardening Association (ACGA) works build community by increasing and enhancing community gardening and greening across the United States and Canada. The ACGA works with churches and synagogues to plant organically grown fruit and vegetable gardens to help feed poor communities.

The Earth Day Network was born out of the first Earth Day in 1970 and works with more than 22,000 partners in 192 countries to broaden, diversify and mobilize the environmental movement. In addition to coordinating Earth Day activities, the network, which is based in Washington, D.C., works throughout the year to promote green policies. […]

Food, Inc. is a documentary in which filmmaker Robert Kenner looks at what he calls “the highly mechanized underbelly that’s been hidden from the American consumer with the consent of our government’s regulatory agencies, USDA and FDA.”

Written by Michael Pollan. Pollan investigates the process that brings food from the source to American’s plates and the political, economic, psychological and moral implications that entail.

Tufts University is a private university with campuses in Boston, Medford/Somerville & Grafton, Mass., and Talloires, France. It boasts a very large Jewish student population and was named one of the ten “most Jewish” universities by Reform Judaism magazine in 2008. Patrick Collins is the executive director of public relations.

Author of Diet for a Small Planet and co-author of World Hunger: Twelve Myths. She is co-leader of the Small Planet Institute in Cambridge, Mass., and was a co-founder of the Institute for Food and Development Policy (Food First). Contact through Rod Meade Sperry, outreach and operations director.

Kim Bobo is the founder and executive director of Interfaith Worker Justice, which works with faith communities to provide sanctuary and support for illegal immigrants. She is the author of Wage Theft in America: Why Millions of Working Americans Are Not Getting Paid – And What We Can Do About It (2008).

Blake Burleson, senior lecturer in religion at Baylor University in Waco, Texas, has expertise in sports ethics and world religions.