The Rev. Louis P. Sheldon is chairman of the Traditional Values Coalition and one of the most recognizable names of the religious right.

Evonne Marzouk is executive director and founder of Canfei Nesharim, an organization of Orthodox Jews committed to preserving the environment. She has spoken widely on Judaism and the environment. She lives in Maryland.

The Rev. Samuel T. Lloyd III is the priest-in-charge at Trinity Church in Boston, an Episcopal church. He was the ninth dean of the Washington National Cathedral, and he preached from the cathedral’s pulpit about global warming and the need for Christians to act. Email him through the contact form on Trinity Church’s website.

Edward Brown is the founding director of Care of Creation, a Christian environmental mission agency based in Madison, Wis. He is the author of Our Father’s World: Mobilizing the Church to Care for Creation.

Tami Heim is president and CEO of the Christian Leadership Alliance in San Clemente, Calif., which works with some 4,500 church and parachurch organizations worldwide. The CLA sponsored a study (see in background section) in April on the effects of the recession on Christian nonprofits.

Jennifer McKinney is an associate professor of sociology at Seattle Pacific University. At the 2009 annual meeting of the Society for the Scientific Study of Religion, she made a presentation titled “Real Men Don’t Wear Sweater Vests: Masculinity in an Evangelical Megachurch.”

Gary McIntosh is professor of Christian ministry and leadership at Biola University in La Mirada, Calif. He is also a consultant and the author of 13 books on church growth.

Carson Mencken is a sociology professor at Baylor University in Waco, Texas, and one of the authors of the Baylor Religion Survey released in 2008. He can discuss its findings on megachurches.

Kevin Dougherty is an associate professor of sociology at Baylor University in Waco, Texas. His research focuses on the sociology of religious congregations, including racial diversity in churches.