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Global potential for carbon sequestration: Geographical distribution, country risk and policy implications

Author(s): Benitez P, Mccallum I, Obersteiner M, Yamagata Y

Published: March, 2006

Publisher: Ecological Economics

DOI: 10.1016/j.ecolecon.2005.12.015

Tags: Terrestrial Carbon Storage, Afforestation, Economics

URL: http://www.sciencedirect.com/science/article/pii/S0921800906000309

Abstract: We have provided a framework for identifying least-cost sites for afforestation and reforestation and deriving carbon sequestration cost curves at a global level in a scenario of limited information. Special attention is given to country risk in developing countries and the sensitivity to spatial datasets. Our model results suggest that within 20 years and considering a carbon price of US$50/tC, tree-planting activities could offset 1 year of global carbon emissions in the energy sector. However, if we account for country risk considerations–associated with political, economic and financial risks–carbon sequestration is reduced by approximately 60%. With respect to the geography of supply, illustrated by grid-scale maps, we find that most least-cost sites are located in regions of developing countries such as the Sub-Sahara, Southeast Brazil and Southeast Asia.


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