This new policy report tells the story of international discussions on human rights and environment, human rights and climate change, and the push for the right to a safe, clean, healthy and sustainable environment (R2E), describing the broad normative contours of such a right, and explaining the benefits, for humanity, the environment and the climate, that would accrue from universal recognition. The report ends with a simple recommendation to UN member States: to make a final push to secure universal recognition of R2E, via twin resolutions at the Human Rights Council and the General Assembly.