TY - GEN AU - United Nations Environment Programme PY - 2017 UR - https://wedocs.unep.org/handle/20.500.11822/26730 LA - English KW - ozone KW - ozone-depleting substance KW - ozone layer KW - climate change KW - greenhouse gas KW - hydrochlorofluorocarbon KW - Ozone TI - OzoNews VolXVII - 15 November 2017 M3 - Communication or other resource ER -