Rabbi Arthur Waskow is a Reconstructionist rabbi who is director of the Shalom Center, which promotes activism and education around Jewish environmentalism. He is the author of Down-to-Earth Judaism: Food, Money, Sex and the Rest of Life. Read his essay “Passover as if Earth Really Matters” in the April 2008 online edition of The Nation.

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.

August 1996, Our Planet article by Fazlun Khalid about the Islamic approach to environmentalism. Khalid directs the Islamic Foundation for Ecology and Environmental Sciences.

Rebecca Greenwood is co-founder and president of Christian Harvest International and Strategic Prayer Action Network (SPAN). She is the author of Destined to Rule: Spiritual Strategies for Advancing the Kingdom of God (2007), in which she discusses the role and responsibilities of Christians as “rulers” over creation.

Cassandra Carmichael is the executive director of the National Religious Partnership for the Environment. Previously, she served as director of the National Council of Churches’ Eco-Justice Programs and has written numerous articles on faith and the environment.

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.

The Cedar Tree Institute works with organizations, including religious groups, to develop environmental projects in Northern Michigan.