Changes in Emissions of Ozone-Depleting Substances from China Due to Implementation of the Montreal Protocol.
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Ravishankara, A R
Velders, Guus J M
Molina, Mario J
Prinn, Ronald G
MetadataShow full item record
TitleChanges in Emissions of Ozone-Depleting Substances from China Due to Implementation of the Montreal Protocol.
Published inEnviron Sci Technol 2018; 52(19):11359-66
PubliekssamenvattingThe ozone layer depletion and its recovery, as well as the climate influence of ozone-depleting substances (ODSs) and their substitutes that influence climate, are of interest to both the scientific community and the public. Here we report on the emissions of ODSs and their substitute from China, which is currently the largest consumer (and emitter) of these substances. We provide, for the first time, comprehensive information on ODSs and replacement hydrofluorocarbon (HFC) emissions in China starting from 1980 based on reported production and usage. We also assess the impacts (and costs) of controls on ODS consumption and emissions on the ozone layer (in terms of CFC-11-equivalent) and climate (in CO2-equivalent). In addition, we show that while China's future ODS emissions are likely to be defined as long as there is full compliance with the Montreal Protocol; its HFC emissions through 2050 are very uncertain. Our findings imply that HFC controls over the next decades that are more stringent than those under the Kigali Amendment to the Montreal Protocol would be beneficial in mitigating global climate change.
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