TY - GEN AU - United Nations Environment Programme PY - 2018 UR - https://wedocs.unep.org/handle/20.500.11822/27248 LA - English KW - air-conditioning KW - chlorofluorocarbon KW - ozone KW - ozone layer KW - ozone-depleting substance KW - refrigeration TI - OzoNews Volume XVIII - 15-30 December 2018 M3 - Communication or other resource ER -