Abstract
The 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.
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.
| Original language | English |
|---|---|
| Pages (from-to) | 11359-11366 |
| Journal | Environmental Science & Technology |
| Volume | 52 |
| Issue number | 19 |
| DOIs | |
| Publication status | Published - 22 Aug 2018 |
Keywords
- HFC
- climate
- ozone layer
- Kigali amendment
