RT null T1 Constitutions, Environment and Human Rights : Practice and Implementation YR 2017 FD 2017 LK https://wedocs.unep.org/handle/20.500.11822/20772 UL https://wedocs.unep.org/handle/20.500.11822/20772 NO https://www.unep.org/environmentalgovernance/regional-colloquium-constitutions-environment-and-human-rights DS UN Environment Document Repository RD Sep 19, 2026