The ECRCP is a specialized citizenship-by-investment scheme introduced by the world's smallest independent republic, Nauru, to address existential climate threats. Unlike traditional investment programs, this initiative is specifically designed to raise capital for relocating approximately 90% of the nation's households and infrastructure to higher ground to combat rising sea levels. By utilizing private investment, Nauru seeks to bypass the limitations of debt-driven multilateral climate financing. The program underwent significant regulatory reforms as of February 3, 2026, to ensure its ongoing operational framework.