Impact of geoengineering schemes on the terrestrial biosphere

Climate stabilization via "geoengineering" schemes seek to mitigate climate change due to increased greenhouse gases by compensating for reduction in solar radiation incident on Earth's surface. In this paper, we address the impact of these climate stabilization schemes on the terrest...

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Bibliographic Details
Published in:Geophysical research letters 2002-11, Vol.29 (22), p.18-1 to 18-4
Main Authors: Govindasamy, B, Thompson, S, Duffy, P B, Caldeira, K, Delire, C
Format: Article
Language:English
Online Access:Get full text
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Summary:Climate stabilization via "geoengineering" schemes seek to mitigate climate change due to increased greenhouse gases by compensating for reduction in solar radiation incident on Earth's surface. In this paper, we address the impact of these climate stabilization schemes on the terrestrial biosphere using equilibrium simulations from a coupled atmosphere-terrestrial biosphere model. Climate stabilization would tend to limit changes in vegetation distribution brought on by climate change, but would not prevent CO2-induced changes in Net Primary Productivity (NPP) or biomass; indeed, if CO2 fertilization is significant, then a climate-stabilized world could have higher NPP than our current world. Nevertheless, there are many reasons why geoengineering is not a preferred option for climate stabilization. (Author)
ISSN:0094-8276