Environmental ethics, a relatively new field of theological reflection, presents models and approaches which do not always have an integrated vision of reality. Human beings and Environment are not separated and mutually opposed realities. On the contrary, one cannot be studied apart from the other, for they are distinct parts of the same biotic community that is organized in a relational and integrated dynamical structure. In order to overcome dualisms and reductionist viewpoints, an Environmental Ethic from a Christian perspective must integrate ecological commitment and social justice, that is, preservation of the natural world and respect for the human environment. This is the central approach of our dissertation. We stress the urgency of an ethical awareness that, following a dynamics of integration and inclusion, presents a mutually interacting perspective of the Christian faith which, at the same time, is in harmony with other fields of knowledge. Our research intends to seek an ethical reflection on environment which is grounded on creation-salvation theology and, at the same time, is critically articulated with the ecological paradigm and with geographical concept of space.