Reducing the negative human-health impacts of bioenergy crop emissions through region-specific crop selection
An expected global increase in bioenergy-crop cultivation as an alternative to fossil fuels will have consequences on both global climate and local air quality through changes in biogenic emissions of volatile organic compounds (VOCs). While greenhouse gas emissions may be reduced through the substi...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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IOP Publishing
2015
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| Online Access: | http://hdl.handle.net/1721.1/98376 https://orcid.org/0000-0002-3121-8323 |
| _version_ | 1826210089652977664 |
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| author | Guenther, Alex Lamarque, Jean-Francois Barsanti, Kelley Porter, William C. Rosenstiel, Todd N. |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Guenther, Alex Lamarque, Jean-Francois Barsanti, Kelley Porter, William C. Rosenstiel, Todd N. |
| author_sort | Guenther, Alex |
| collection | MIT |
| description | An expected global increase in bioenergy-crop cultivation as an alternative to fossil fuels will have consequences on both global climate and local air quality through changes in biogenic emissions of volatile organic compounds (VOCs). While greenhouse gas emissions may be reduced through the substitution of next-generation bioenergy crops such as eucalyptus, giant reed, and switchgrass for fossil fuels, the choice of species has important ramifications for human health, potentially reducing the benefits of conversion due to increases in ozone (O[subscript 3]) and fine particulate matter (PM[subscript 2.5]) levels as a result of large changes in biogenic emissions. Using the Community Earth System Model we simulate the conversion of marginal and underutilized croplands worldwide to bioenergy crops under varying future anthropogenic emissions scenarios. A conservative global replacement using high VOC-emitting crop profiles leads to modeled population-weighted O[subscript 3] increases of 5–27 ppb in India, 1–9 ppb in China, and 1–6 ppb in the United States, with peak PM[subscript 2.5] increases of up to 2 μg m[superscript −3]. We present a metric for the regional evaluation of candidate bioenergy crops, as well as results for the application of this metric to four representative emissions profiles using four replacement scales (10–100% maximum estimated available land). Finally, we assess the total health and climate impacts of biogenic emissions, finding that the negative consequences of using high-emitting crops could exceed 50% of the positive benefits of reduced fossil fuel emissions in value. |
| first_indexed | 2024-09-23T14:42:29Z |
| format | Article |
| id | mit-1721.1/98376 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T14:42:29Z |
| publishDate | 2015 |
| publisher | IOP Publishing |
| record_format | dspace |
| spelling | mit-1721.1/983762022-09-29T10:11:18Z Reducing the negative human-health impacts of bioenergy crop emissions through region-specific crop selection Guenther, Alex Lamarque, Jean-Francois Barsanti, Kelley Porter, William C. Rosenstiel, Todd N. Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Porter, William C. An expected global increase in bioenergy-crop cultivation as an alternative to fossil fuels will have consequences on both global climate and local air quality through changes in biogenic emissions of volatile organic compounds (VOCs). While greenhouse gas emissions may be reduced through the substitution of next-generation bioenergy crops such as eucalyptus, giant reed, and switchgrass for fossil fuels, the choice of species has important ramifications for human health, potentially reducing the benefits of conversion due to increases in ozone (O[subscript 3]) and fine particulate matter (PM[subscript 2.5]) levels as a result of large changes in biogenic emissions. Using the Community Earth System Model we simulate the conversion of marginal and underutilized croplands worldwide to bioenergy crops under varying future anthropogenic emissions scenarios. A conservative global replacement using high VOC-emitting crop profiles leads to modeled population-weighted O[subscript 3] increases of 5–27 ppb in India, 1–9 ppb in China, and 1–6 ppb in the United States, with peak PM[subscript 2.5] increases of up to 2 μg m[superscript −3]. We present a metric for the regional evaluation of candidate bioenergy crops, as well as results for the application of this metric to four representative emissions profiles using four replacement scales (10–100% maximum estimated available land). Finally, we assess the total health and climate impacts of biogenic emissions, finding that the negative consequences of using high-emitting crops could exceed 50% of the positive benefits of reduced fossil fuel emissions in value. 2015-09-08T12:16:42Z 2015-09-08T12:16:42Z 2015-05 2015-03 Article http://purl.org/eprint/type/JournalArticle 1748-9326 http://hdl.handle.net/1721.1/98376 Porter, William C, Todd N Rosenstiel, Alex Guenther, Jean-Francois Lamarque, and Kelley Barsanti. “Reducing the Negative Human-Health Impacts of Bioenergy Crop Emissions through Region-Specific Crop Selection.” Environmental Research Letters 10, no. 5 (May 1, 2015): 054004. © 2015 IOP Publishing Ltd https://orcid.org/0000-0002-3121-8323 en_US http://dx.doi.org/10.1088/1748-9326/10/5/054004 Environmental Research Letters Creative Commons Attribution http://creativecommons.org/licenses/by/3.0/ application/pdf IOP Publishing IOP Publishing |
| spellingShingle | Guenther, Alex Lamarque, Jean-Francois Barsanti, Kelley Porter, William C. Rosenstiel, Todd N. Reducing the negative human-health impacts of bioenergy crop emissions through region-specific crop selection |
| title | Reducing the negative human-health impacts of bioenergy crop emissions through region-specific crop selection |
| title_full | Reducing the negative human-health impacts of bioenergy crop emissions through region-specific crop selection |
| title_fullStr | Reducing the negative human-health impacts of bioenergy crop emissions through region-specific crop selection |
| title_full_unstemmed | Reducing the negative human-health impacts of bioenergy crop emissions through region-specific crop selection |
| title_short | Reducing the negative human-health impacts of bioenergy crop emissions through region-specific crop selection |
| title_sort | reducing the negative human health impacts of bioenergy crop emissions through region specific crop selection |
| url | http://hdl.handle.net/1721.1/98376 https://orcid.org/0000-0002-3121-8323 |
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