A fair and honest debate about religious responses to environmental issues should always distinguish theological principles from prudential judgments.  The Cornwall Declaration and the accompanying essays in this volume were written to do just that.  They were not written to provide theological rationale for current environmentalist fashion.  Rather, they seek to articulate the broad Judeo-Christian theological principles concerning the environment, and to distinguish those principles from contrary ideas popular in the environmental movement. The Acton Institute is a non-profit, ecumenical think tank working internationally to "promote a free and virtuous society characterized by individual liberty and sustained by religious principles."  With offices in Grand Rapids, Michigan and Rome, Italy, as well as affiliates in four other nations around the world, the Acton Institute is uniquely positioned to comment on the sound economic and moral foundations necessary to sustain humane environmental and social policies.