Global climate impacts of country-level primary carbonaceous aerosol from solid-fuel cookstove emissions
Environmental Research Letters, ISSN: 1748-9326, Vol: 10, Issue: 11
2015
- 31Citations
- 69Captures
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Article Description
Cookstove use is globally one of the largest unregulated anthropogenic sources of primary carbonaceous aerosol. While reducing cookstove emissions through national-scale mitigation efforts has clear benefits for improving indoor and ambient air quality, and significant climate benefits from reduced green-house gas emissions, climate impacts associated with reductions to co-emitted black (BC) and organic carbonaceous aerosol are not well characterized. Here we attribute direct, indirect, semi-direct, and snow/ice albedo radiative forcing (RF) and associated global surface temperature changes to national-scale carbonaceous aerosol cookstove emissions. These results are made possible through the use of adjoint sensitivity modeling to relate direct RF and BC deposition to emissions. Semi- and indirect effects are included via global scaling factors, and bounds on these estimates are drawn from current literature ranges for aerosol RF along with a range of solid fuel emissions characterizations. Absolute regional temperature potentials are used to estimate global surface temperature changes. Bounds are placed on these estimates, drawing from current literature ranges for aerosol RF along with a range of solid fuel emissions characterizations. We estimate a range of 0.16 K warming to 0.28 K cooling with a central estimate of 0.06 K cooling from the removal of cookstove aerosol emissions. At the national emissions scale, countries' impacts on global climate range from net warming (e.g., Mexico and Brazil) to net cooling, although the range of estimated impacts for all countries span zero given uncertainties in RF estimates and fuel characterization. We identify similarities and differences in the sets of countries with the highest emissions and largest cookstove temperature impacts (China, India, Nigeria, Pakistan, Bangladesh and Nepal), those with the largest temperature impact per carbon emitted (Kazakhstan, Estonia, and Mongolia), and those that would provide the most efficient cooling from a switch to fuel with a lower BC emission factor (Kazakhstan, Estonia, and Latvia). The results presented here thus provide valuable information for climate impact assessments across a wide range of cookstove initiatives.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84949255259&origin=inward; http://dx.doi.org/10.1088/1748-9326/10/11/114003; https://iopscience.iop.org/article/10.1088/1748-9326/10/11/114003; https://iopscience.iop.org/article/10.1088/1748-9326/10/11/114003/pdf; https://dx.doi.org/10.1088/1748-9326/10/11/114003; https://validate.perfdrive.com/9730847aceed30627ebd520e46ee70b2/?ssa=389d2767-16c1-45e7-9703-640416f03585&ssb=75369214983&ssc=https%3A%2F%2Fiopscience.iop.org%2Farticle%2F10.1088%2F1748-9326%2F10%2F11%2F114003&ssi=dc09743f-cnvj-43a5-94c7-efcf0d418227&ssk=botmanager_support@radware.com&ssm=591113757147930671998254533213134745&ssn=f7de0eae61c0ba8de6746c60e82a2ed159dffe105911-65fe-48dc-8b1e3e&sso=48de2150-9319bfde79b5ac09578a17ba10ad556b821a9ff32bf81d9a&ssp=66725329721726249519172640226591996&ssq=29100464686792357495363731525742226077832&ssr=NTIuMy4yMTcuMjU0&sst=com.plumanalytics&ssu=&ssv=&ssw=&ssx=eyJfX3V6bWYiOiI3ZjYwMDBmY2NjNzQxOC1mYzFiLTRjNmEtODMwYS1iMjY5YmYxNWM5NTIxNzI2MjYzNzMxNDQwMTgzMTM2MDk4LWQxYjNmZWZlZTViYjFkNDkxOTk3ODYiLCJyZCI6ImlvcC5vcmciLCJ1em14IjoiN2Y5MDAwMzZjZDcxYjQtYzE1Yy00OTVhLWFjNjEtNTM4YWIxMWM0ZjdhNC0xNzI2MjYzNzMxNDQwMTgzMTM2MDk4LWViZmZkMWZkZTQ4YWU3NmQxOTk3NzEifQ==
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