Projects per year
Abstract
We infer global and regional emissions of five of the most abundant hydrofluorocarbons (HFCs) using atmospheric measurements from the Advanced Global Atmospheric Gases Experiment and the National Institute for Environmental Studies, Japan, networks. We find that the total CO2-equivalent emissions of the five HFCs from countries that are required to provide detailed, annual reports to the United Nations Framework Convention on Climate Change (UNFCCC) increased from 198 (175-221) Tg-CO2-eq⋅y(-1) in 2007 to 275 (246-304) Tg-CO2-eq⋅y(-1) in 2012. These global warming potential-weighted aggregated emissions agree well with those reported to the UNFCCC throughout this period and indicate that the gap between reported emissions and global HFC emissions derived from atmospheric trends is almost entirely due to emissions from nonreporting countries. However, our measurement-based estimates of individual HFC species suggest that emissions, from reporting countries, of the most abundant HFC, HFC-134a, were only 79% (63-95%) of the UNFCCC inventory total, while other HFC emissions were significantly greater than the reported values. These results suggest that there are inaccuracies in the reporting methods for individual HFCs, which appear to cancel when aggregated together.
Original language | English |
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Pages (from-to) | 5927-5931 |
Journal | Proceedings of the National Academy of Sciences of the United States of America |
Volume | 112 |
Issue number | 19 |
DOIs | |
Publication status | Published - 27 Apr 2015 |
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Dive into the research topics of 'Reconciling reported and unreported HFC emissions with atmospheric observations'. Together they form a unique fingerprint.Projects
- 3 Finished
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Advanced computing architecture to support the estimation and reporting of UK GHG emissions
Rigby, M. L. (Principal Investigator)
13/11/13 → 13/10/15
Project: Research
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GAUGE: Greenhouse Gas UK & Global Emissions (GUAGE)
Palmer, P. (Principal Investigator), Rigby, M. L. (Researcher), Stavert, A. R. (Researcher), Wenger, A. (Researcher), Young, T. D. S. (Researcher) & O'Doherty, S. (Principal Investigator)
30/06/13 → 29/09/17
Project: Research
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Towards treaty verification of all non-CO2 greenhouse gasses - Dr Matthew Rigby
Rigby, M. L. (Principal Investigator)
1/01/12 → 31/12/16
Project: Research
Profiles
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Professor Anita L Ganesan
- School of Geographical Sciences - Professor of Atmospheric Chemistry
- Atmospheric Chemistry
- Cabot Institute for the Environment
Person: Academic , Member
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Professor Simon O'Doherty
- School of Chemistry - Professor of Atmospheric Chemistry
- Cabot Institute for the Environment
- Atmospheric Chemistry
Person: Academic , Member, Group lead
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Professor Matthew L Rigby
Person: Academic , Member