The Sprit of Sustainability, Volume 1 of the ten-volume Berkshire Encyclopedia of Sustainability, helps readers navigate the moral worlds and ethical concepts, and social and religious practices related to sustainability. In collaboration with the Forum on Religion and Ecology, an established network of leading scholars, it explores a wide range of topics and perspectives, from the promise and problems of approaching sustainability through global and indigenous religions, to major theories in philosophy and environmental ethics, and professional practices and social movements. This volume presents the various goals of sustainability - ecological integrity, economic health, human dignity, fairness to the future, and social justice - and provides a framework for reasoning through many interrelated environmental challenges for both current and future generations.