Global Warming Potential* (GWP*): Understanding the implications for mitigating methane emissions in agriculture
KEY MESSAGES: - GWP* (global warming potential) complements conventional climate metrics such as GWP100 because GWP* better describes the actual warming caused by methane (CH4) emissions. For example, using GWP100, a constant annual rate of CH4 emissions may be misinterpreted as having a 3-4 times...
| Autores principales: | , , , |
|---|---|
| Formato: | Brief |
| Lenguaje: | Inglés |
| Publicado: |
CGIAR Research Program on Climate Change, Agriculture and Food Security
2021
|
| Materias: | |
| Acceso en línea: | https://hdl.handle.net/10568/114632 |
| _version_ | 1855524999721385984 |
|---|---|
| author | Costa, Ciniro Wironen, Michael Racette, Kelly Wollenberg, Eva Karoline |
| author_browse | Costa, Ciniro Racette, Kelly Wironen, Michael Wollenberg, Eva Karoline |
| author_facet | Costa, Ciniro Wironen, Michael Racette, Kelly Wollenberg, Eva Karoline |
| author_sort | Costa, Ciniro |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | KEY MESSAGES:
- GWP* (global warming potential) complements conventional climate metrics such as GWP100 because GWP* better describes the actual warming caused by methane (CH4) emissions. For example, using GWP100, a constant annual rate of CH4 emissions may be misinterpreted as having a 3-4 times higher impact on warming than observed. The use of GWP* can correct this misestimation.
- GWP* was used here to evaluate the impact of agricultural CH4 emissions scenarios from 2020- 2040, finding that:
- A sustained ~0.35% annual decline is sufficient to stop further increases in global temperatures due to agricultural CH4 emissions. This is analogous to the impact of net-zero CO2 emissions.
- A ~5% annual decline could neutralize the additional warming caused by agricultural CH4 since the 1980s.
- Faster reductions of CH4 emissions have an analogous impact to removing CO2 from the atmosphere.
- However, a 1.5% annual increase in CH4 emissions would lead to climate impacts about 40% greater than indicated by GWP100.
- The application of GWP* to CH4 emissions accounting suggests that avoiding further warming due to CH4 emissions in agriculture is more attainable than previously understood. CH4 reductions can have a rapid and highly substantial impact, which underscores the importance of making significant cuts in CH4 emissions immediately. |
| format | Brief |
| id | CGSpace114632 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | CGIAR Research Program on Climate Change, Agriculture and Food Security |
| publisherStr | CGIAR Research Program on Climate Change, Agriculture and Food Security |
| record_format | dspace |
| spelling | CGSpace1146322025-08-15T13:21:53Z Global Warming Potential* (GWP*): Understanding the implications for mitigating methane emissions in agriculture Costa, Ciniro Wironen, Michael Racette, Kelly Wollenberg, Eva Karoline climate change agriculture food security greenhouse gas emissions methane carbon KEY MESSAGES: - GWP* (global warming potential) complements conventional climate metrics such as GWP100 because GWP* better describes the actual warming caused by methane (CH4) emissions. For example, using GWP100, a constant annual rate of CH4 emissions may be misinterpreted as having a 3-4 times higher impact on warming than observed. The use of GWP* can correct this misestimation. - GWP* was used here to evaluate the impact of agricultural CH4 emissions scenarios from 2020- 2040, finding that: - A sustained ~0.35% annual decline is sufficient to stop further increases in global temperatures due to agricultural CH4 emissions. This is analogous to the impact of net-zero CO2 emissions. - A ~5% annual decline could neutralize the additional warming caused by agricultural CH4 since the 1980s. - Faster reductions of CH4 emissions have an analogous impact to removing CO2 from the atmosphere. - However, a 1.5% annual increase in CH4 emissions would lead to climate impacts about 40% greater than indicated by GWP100. - The application of GWP* to CH4 emissions accounting suggests that avoiding further warming due to CH4 emissions in agriculture is more attainable than previously understood. CH4 reductions can have a rapid and highly substantial impact, which underscores the importance of making significant cuts in CH4 emissions immediately. 2021-08-13 2021-08-13T19:48:52Z 2021-08-13T19:48:52Z Brief https://hdl.handle.net/10568/114632 en Open Access application/pdf CGIAR Research Program on Climate Change, Agriculture and Food Security Costa Jr C, Wironen M, Racette K, Wollenberg E. 2021. Global Warming Potential* (GWP*): Understanding the implications for mitigating methane emissions in agriculture. CCAFS Info Note. Wageningen, The Netherlands: CGIAR Research Program on Climate Change, Agriculture and Food Security (CCAFS). |
| spellingShingle | climate change agriculture food security greenhouse gas emissions methane carbon Costa, Ciniro Wironen, Michael Racette, Kelly Wollenberg, Eva Karoline Global Warming Potential* (GWP*): Understanding the implications for mitigating methane emissions in agriculture |
| title | Global Warming Potential* (GWP*): Understanding the implications for mitigating methane emissions in agriculture |
| title_full | Global Warming Potential* (GWP*): Understanding the implications for mitigating methane emissions in agriculture |
| title_fullStr | Global Warming Potential* (GWP*): Understanding the implications for mitigating methane emissions in agriculture |
| title_full_unstemmed | Global Warming Potential* (GWP*): Understanding the implications for mitigating methane emissions in agriculture |
| title_short | Global Warming Potential* (GWP*): Understanding the implications for mitigating methane emissions in agriculture |
| title_sort | global warming potential gwp understanding the implications for mitigating methane emissions in agriculture |
| topic | climate change agriculture food security greenhouse gas emissions methane carbon |
| url | https://hdl.handle.net/10568/114632 |
| work_keys_str_mv | AT costaciniro globalwarmingpotentialgwpunderstandingtheimplicationsformitigatingmethaneemissionsinagriculture AT wironenmichael globalwarmingpotentialgwpunderstandingtheimplicationsformitigatingmethaneemissionsinagriculture AT racettekelly globalwarmingpotentialgwpunderstandingtheimplicationsformitigatingmethaneemissionsinagriculture AT wollenbergevakaroline globalwarmingpotentialgwpunderstandingtheimplicationsformitigatingmethaneemissionsinagriculture |