If deep ecology is a religion, can an atheist believe in deep ecology?

Is deep ecology a religion? Defend your answer with reference to the assigned readings. (Hint: The Garreau and Wallace readings are helpful here, but also look back at how Gottlieb defines religion on pp. 8-9 of This Sacred Earth: Religion, Nature, Environment, and be sure to discuss John Seed’s rituals.) If deep ecology is a religion, can an atheist believe in deep ecology? Can someone accept deep ecology without giving up their own traditional religion such as Christianity, Islam, etc.? If you do not believe that deep ecology is a religion, explain why you believe it is not a religion and what distinguishes deep ecology from recognized religions.