What do palm fronds, statues of Ganesh, and eagle feathers all have in common?   They are religious objects that pose a challenge for the environment.  Jay Wexler is a professor at the Boston University School of Law.   He specializes in environmental law and church/state issues.   His latest book is When God Isn't Green:  A World-Wide Journey to Places Where Religious Practice and Environmentalism Collide.   With humor and a hope for raising consciousness and finding balance, he makes the case for continuing the conversation between the needs of religious and environmental communities.