Here is a list of resources from Sojourners that will help further develop an understanding of Christian ethics and the environment.
Articles:
A Partnership for the Earth: Churches and the environmental movement.
by Aaron Gallegos
The Green Gospel: Will seminaries equip church leaders for an age of environmental crisis?
by Katharine M. Preston
Sinking Noah's Ark: Christians and the Endangered Species Act.
by Aaron Gallegos
The Woman Who Planted Trees
compiled by Rose Berger and Mark Betz
The Bible calls us to dominion over creation. Or does it?
by Ched Myers
It's the Environment, Stupid: How could anyone have gotten so out of touch with physical reality?
by Bill McKibben
The Green Gospel: Will seminaries equip church leaders for an age of environmental crisis?
by Katharine M. Preston