Ecosystem Impacts of Geoengineering: A Review for Developing a Science Plan
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Geoengineering methods are intended to reduce climate change, which is already having demonstrable effects on ecosystem structure and functioning in some regions. Two types of geoengineering activities that have been proposed are: carbon dioxide (CO2) removal (CDR), which removes CO2 from the atmosphere, and solar radiation management (SRM, or sunlight reflection methods), which reflects a small percentage of sunlight back into space to offset warming from greenhouse gases (GHGs). Current research suggests that SRM or CDR might diminish the impacts of climate change on ecosystems by reducing changes in temperature and precipitation. However, sudden cessation of SRM would exacerbate the climate effects on ecosystems, and some CDR might interfere with oceanic and terrestrial ecosystem processes. The many risks and uncertainties associated with these new kinds of purposeful perturbations to the Earth system are not well understood and require cautious and comprehensive research.
KeywordsGeoengineering Ecosystems Climate change Carbon dioxide removal Solar radiation management
The authors gratefully acknowledge financial support from the U.S. National Science Foundation grant AGS1111205 and the U.K. Natural Environment Research Council, as well as seed funding and outreach support from the International Geosphere-Biosphere Program. We also gratefully acknowledge workshop participation from Richard Norris, Richard Somerville, Susan Hassol, Kathy Barbeau, Luis Gylvan, Phil Ineson, Ninad Bondre, Ben Kravitz, Spencer Hill, Lili Xia, Robin Stevens, and Anita Johnson.
- Bopp, L., C. Le Quere, M. Heimann, A.C. Manning, and P. Monfray. 2002. Climate-induced oceanic oxygen fluxes: Implications for the contemporary carbon budget. Global Biogeochemical Cycles 16. doi: 10.1029/2001gb001445.
- Boyd, P.W., and S.C. Doney. 2002. Modelling regional responses by marine pelagic ecosystems to global climate change. Geophysical Research Letters 29: 53-1–53-4. 10.1029/2001gl014130.
- IPCC (Intergovernmental Panel on Climate Change). 2005. Special report on carbon dioxide capture and storage. Prepared by Working Group III, ed. B. Metz, O.D., H.C. De Coninck, M. Loos, and L.A. Meyer. Cambridge: Cambridge University Press.Google Scholar
- IPCC (Intergovernmental Panel on Climate Change). 2007a. Climate change 2007: The physical science basis. Contribution of Working Group I to the Fourth Assessment Report, ed. S. Solomon, D.Q., M. Manning, Z. Chen, M. Marquis, K.B. Avery, M. Tignor, and H.L. Miller. Cambridge: Cambridge University Press.Google Scholar
- IPCC (Intergovernmental Panel on Climate Change). 2007b. Climate change 2007: Impacts, adaptation and vulnerability. Contribution of Working Group II to the Fourth Assessment Report, ed. M.L. Parry, O.F.C., J.P. Palutikof, P.J. Van Der Linden, and C.E. Hanson. Cambridge University Press, Cambridge.Google Scholar
- Jackson, R.B., and J. Salzman. 2010. Pursuing geoengineering for atmospheric restoration. Issues in Science and Technology 26: 67–76.Google Scholar
- Latham, J., P. Rasch, C.C. Chen, L. Kettles, A. Gadian, A. Gettelman, H. Morrison, K. Bower, et al. 2008. Global temperature stabilization via controlled albedo enhancement of low-level maritime clouds. Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences 366: 3969–3987. doi: 10.1098/rsta.2008.0137.CrossRefGoogle Scholar
- Manizza, M., M.J. Follows, S. Dutkiewicz, J.W. McClelland, D. Menemenlis, C.N. Hill, A. Townsend-Small, and B.J. Peterson. 2009. Modeling transport and fate of riverine dissolved organic carbon in the Arctic Ocean. Global Biogeochemical Cycles 23. doi: 10.1029/2008gb003396.
- Matear, R.J., and B. Elliott. 2004. Enhancement of oceanic uptake of anthropogenic CO2 by macronutrient fertilization. Journal of Geophysical Research-Oceans 109. doi: 10.1029/2000jc000321.
- MEA (Millenium Ecosystem Assessment). 2005. Ecosystems and human well-being: Synthesis. Washington: Island Press.Google Scholar
- Norby, R.J., J.M. Warren, C.M. Iversen, B.E. Medlyn, and R.E. McMurtrie. 2010. CO2 enhancement of forest productivity constrained by limited nitrogen availability. Proceedings of the National academy of Sciences of the United States of America 107: 19368–19373. doi: 10.1073/pnas.1006463107.CrossRefGoogle Scholar
- Parkhill, K.A., and N.F. Pidgeon. 2011. Public engagement on geoengineering research: Preliminary report on the SPICE deliberative workshops. Technical Report (Understanding Risk Group Working Paper, 11-01). Cardiff: School of Psychology, Cardiff University.Google Scholar
- Pielke, R.A., G. Marland, R.A. Betts, T.N. Chase, J.L. Eastman, J.O. Niles, D.D.S. Niyogi, and S.W. Running. 2002. The influence of land-use change and landscape dynamics on the climate system: Relevance to climate-change policy beyond the radiative effect of greenhouse gases. Philosophical Transactions of the Royal Society of London Series A-Mathematical Physical and Engineering Sciences 360: 1705–1719. doi: 10.1098/rsta.2002.1027.CrossRefGoogle Scholar
- Rasch, P.J., S. Tilmes, R.P. Turco, A. Robock, L. Oman, C.C. Chen, G.L. Stenchikov, and R.R. Garcia. 2008. An overview of geoengineering of climate using stratospheric sulphate aerosols. Philosophical Transactions of the Royal Society A-Mathematical Physical and Engineering Sciences 366: 4007–4037. doi: 10.1098/rsta.2008.0131.CrossRefGoogle Scholar
- Raupach, M.R., P.J. Rayner, D.J. Barrett, R.S. DeFries, M. Heimann, D.S. Ojima, S. Quegan, and C.C. Schmullius. 2005. Model–data synthesis in terrestrial carbon observation: Methods, data requirements and data uncertainty specifications. Global Change Biology 11: 378–397. doi: 10.1111/j.1365-2486.2005.00917.x.CrossRefGoogle Scholar
- Raven, J.A., et al. 2005. Ocean acidification due to increasing atmospheric carbon dioxide. London: Royal Society.Google Scholar
- Saba, V.S., M.A.M. Friedrichs, M.E. Carr, D. Antoine, R.A. Armstrong, I. Asanuma, O. Aumont, N.R. Bates, et al. 2010. Challenges of modeling depth-integrated marine primary productivity over multiple decades: A case study at bats and hot. Global Biogeochemical Cycles 24. doi: 10.1029/2009gb003655.
- Sabine, C.L., M. Heimann, and P. Artaxo. 2004. Current status and past trends of the global carbon cycle, 17–44. Washington: Island Press.Google Scholar
- Shepherd, J., K. Caldeira, P. Cox, J. Haigh, D. Keith, B. Launder, G. Mace, G. MacKerron, et al. 2009. Geoengineering the climate. London: The Royal Society.Google Scholar
- Silver, M.W., S. Bargu, S.L. Coale, C.R. Benitez-Nelson, A.C. Garcia, K.J. Roberts, E. Sekula-Wood, K.W. Bruland, et al. 2010. Toxic diatoms and domoic acid in natural and iron enriched waters of the oceanic pacific. Proceedings of the National Academy of Sciences of the United States of America 107: 20762–20767. doi: 10.1073/pnas.1006968107.CrossRefGoogle Scholar
- Socolow, R., M. Desmond, R. Aines, J. Blackstock, O. Bolland, T. Kaarsberg, N. Lewis, M. Mazzotti, et al. 2011. Direct air capture of CO2 with chemicals, a technology assessment for the APS panel on public affairs. http://www.aps.org/policy/reports/assessments/loader.cfm?csModule=security/getfile&PageID=244407.
- Trick, C.G., B.D. Bill, W.P. Cochlan, M.L. Wells, V.L. Trainer, and L.D. Pickell. 2010. Iron enrichment stimulates toxic diatom production in high-nitrate, low-chlorophyll areas. Proceedings of the National Academy of Sciences of the United States of America 107: 5887–5892. doi: 10.1073/pnas.0910579107.CrossRefGoogle Scholar
- Zeebe, R.E., and D. Archer. 2005. Feasibility of ocean fertilization and its impact on future atmospheric CO2 levels. Geophysical Research Letters 32. doi: 10.1029/2005gl022449.