David A. Zimmerman is an associate editor at InterVarsity Press, a Christian publishing house in Downers Grove, Ill., and the author of Comic Book Character: Unleashing the Hero in Us All.

Greg Garrett is a professor of English at Baylor University in Waco, Texas. He is the author of Holy Superheroes: Exploring Faith and Spirituality in Comic Books and The Gospel According to Hollywood and is co-author, with Chris Seay, of The Gospel Reloaded: Exploring Spirituality and Faith in The Matrix.

Read a July 1, 2005, story in Episcopal Life about religious themes in the comics.

Read this July 10, 2006, article in Books & Culture about the movie Superman Returns.

LeAnne Beres is executive director of Seattle-based Earth Ministry. Earth Ministry is a Christian, ecumenical group based in Seattle that works with individuals and congregations on environmental issues.

Bernard Daley Zaleha is president of the Fund for Christian Ecology, a Boise, Idaho-based nonprofit that encourages discussion of religion’s responsibility toward the earth.

The Religious Campaign for Forest Conservation is a coalition of churches, synagogues and para-religious organizations concerned with forest conservation. It is based in Santa Rosa, Calif.

Target Earth, in Colfax, Wash., is a national network of Christian organizations committed to environmental stewardship.

The Interfaith Center on Corporate Responsibility, based in New York City, is a North American association of nearly 250 Protestant, Roman Catholic, and Jewish institutional investors working to hold corporations accountable to stewardship of the earth, among other issues. Contact Susana McDermott, director of communications.