Climate impacts of a large-scale biofuels expansion
A global biofuels program will potentially lead to intense pressures on land supply and cause widespread transformations in land use. These transformations can alter the Earth climate system by increasing greenhouse gas (GHG) emissions from land use changes and by changing the reflective and energy...
| Auteurs principaux: | , , , , , |
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| Format: | Article |
| Langue: | en_US |
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American Geophysical Union (AGU)
2015
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| Accès en ligne: | http://hdl.handle.net/1721.1/96918 https://orcid.org/0000-0001-5533-6570 |
| _version_ | 1826193850665795584 |
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| author | Hallgren, Willow Monier, Erwan Kicklighter, David Melillo, Jerry M. Schlosser, Adam Sokolov, Andrei P. |
| author2 | Massachusetts Institute of Technology. Center for Global Change Science |
| author_facet | Massachusetts Institute of Technology. Center for Global Change Science Hallgren, Willow Monier, Erwan Kicklighter, David Melillo, Jerry M. Schlosser, Adam Sokolov, Andrei P. |
| author_sort | Hallgren, Willow |
| collection | MIT |
| description | A global biofuels program will potentially lead to intense pressures on land supply and cause widespread transformations in land use. These transformations can alter the Earth climate system by increasing greenhouse gas (GHG) emissions from land use changes and by changing the reflective and energy exchange characteristics of land ecosystems. Using an integrated assessment model that links an economic model with climate, terrestrial biogeochemistry, and biogeophysics models, we examined the biogeochemical and biogeophysical effects of possible land use changes from an expanded global second-generation bioenergy program on surface temperatures over the first half of the 21st century. Our integrated assessment model shows that land clearing, especially forest clearing, has two concurrent effects—increased GHG emissions, resulting in surface air warming; and large changes in the land's reflective and energy exchange characteristics, resulting in surface air warming in the tropics but cooling in temperate and polar regions. Overall, these biogeochemical and biogeophysical effects will only have a small impact on global mean surface temperature. However, the model projects regional patterns of enhanced surface air warming in the Amazon Basin and the eastern part of the Congo Basin. Therefore, global land use strategies that protect tropical forests could dramatically reduce air warming projected in these regions. |
| first_indexed | 2024-09-23T09:46:22Z |
| format | Article |
| id | mit-1721.1/96918 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:46:22Z |
| publishDate | 2015 |
| publisher | American Geophysical Union (AGU) |
| record_format | dspace |
| spelling | mit-1721.1/969182022-09-30T16:43:17Z Climate impacts of a large-scale biofuels expansion Hallgren, Willow Monier, Erwan Kicklighter, David Melillo, Jerry M. Schlosser, Adam Sokolov, Andrei P. Massachusetts Institute of Technology. Center for Global Change Science Massachusetts Institute of Technology. Joint Program on the Science & Policy of Global Change Monier, Erwan Monier, Erwan Schlosser, Adam Hallgren, Willow Sokolov, Andrei P. A global biofuels program will potentially lead to intense pressures on land supply and cause widespread transformations in land use. These transformations can alter the Earth climate system by increasing greenhouse gas (GHG) emissions from land use changes and by changing the reflective and energy exchange characteristics of land ecosystems. Using an integrated assessment model that links an economic model with climate, terrestrial biogeochemistry, and biogeophysics models, we examined the biogeochemical and biogeophysical effects of possible land use changes from an expanded global second-generation bioenergy program on surface temperatures over the first half of the 21st century. Our integrated assessment model shows that land clearing, especially forest clearing, has two concurrent effects—increased GHG emissions, resulting in surface air warming; and large changes in the land's reflective and energy exchange characteristics, resulting in surface air warming in the tropics but cooling in temperate and polar regions. Overall, these biogeochemical and biogeophysical effects will only have a small impact on global mean surface temperature. However, the model projects regional patterns of enhanced surface air warming in the Amazon Basin and the eastern part of the Congo Basin. Therefore, global land use strategies that protect tropical forests could dramatically reduce air warming projected in these regions. United States. Dept. of Energy 2015-05-05T17:50:41Z 2015-05-05T17:50:41Z 2013-04 2013-03 Article http://purl.org/eprint/type/JournalArticle 00948276 http://hdl.handle.net/1721.1/96918 Hallgren, Willow, C. Adam Schlosser, Erwan Monier, David Kicklighter, Andrei Sokolov, and Jerry Melillo. “Climate Impacts of a Large-Scale Biofuels Expansion.” Geophys. Res. Lett. 40, no. 8 (April 28, 2013): 1624–1630. © 2013 American Geophysical Union https://orcid.org/0000-0001-5533-6570 en_US http://dx.doi.org/10.1002/grl.50352 Geophysical Research Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Geophysical Union (AGU) Monier |
| spellingShingle | Hallgren, Willow Monier, Erwan Kicklighter, David Melillo, Jerry M. Schlosser, Adam Sokolov, Andrei P. Climate impacts of a large-scale biofuels expansion |
| title | Climate impacts of a large-scale biofuels expansion |
| title_full | Climate impacts of a large-scale biofuels expansion |
| title_fullStr | Climate impacts of a large-scale biofuels expansion |
| title_full_unstemmed | Climate impacts of a large-scale biofuels expansion |
| title_short | Climate impacts of a large-scale biofuels expansion |
| title_sort | climate impacts of a large scale biofuels expansion |
| url | http://hdl.handle.net/1721.1/96918 https://orcid.org/0000-0001-5533-6570 |
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