CRS Home - Conservatives for Responsible Stewardship Conservatives for Responsible Stewardship CRS is a national nonprofit grassroots organization founded on the premise that environmental stewardship and natural resource conservation are inherently conservative and that true conservatives endeavor to be good stewards of the natural systems and resources that sustain life on earth. Safeguarding our air and water our public lands our wetlands and wildlife is as Ronald Reagan accurately pointed out our great moral responsibility. When conservatives fail to engage and take this obligation seriously the solutions proposed come entirely from the left. Americas most enduring environmental protections have been shaped by conservative ideas.