Although a vast literature focuses on the efforts of states on climate change, they are not the only sovereigns who are working to address its negative impacts. This Article argues that though tribal governments are not part of the federalist system, they are still capable of regulatory innovation that may prove helpful to other sovereigns, such as other tribes, states, and the federal government.

Recent assessments of the international community’s ability to hold the increase of global average temperature to well below 2°C, while pursuing efforts to limit that increase to 1.5°C, indicate that this goal is unlikely to be achieved without large-scale implementation of climate engineering (CE) technologies.