The Parties to this Protocol,being Parties to the Vienna Convention for the Protection of the Ozone Layer, mindful of their obligation under that Convention to take appropriate measures to protect human health and the environment against adverse effects resulting or likely to result from human activities which modify or are likely to modify the ozone layer,recognizing that world-wide emissions of certain substances can significantly deplete and otherwise modify the ozone layer in a manner that is likely to result in adverse effects on human health and the environment,conscious of the potential climatic effects of emissions of these substances...