Set-asides for carbon sequestration: implications for permanence and leakage |
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| Authors: | Bin Sun Brent Sohngen |
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| Institution: | 1.AED Economics,Ohio State University,Columbus,USA |
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| Abstract: | This paper examines the potential role of forest set-asides in global carbon sequestration policy. While set asides that protect
forests from timber harvests and land-use conversion may alleviate concerns with permanence, and they may provide large ancillary
environmental benefits, they may also lead to large leakage. This paper uses a global land use and forestry model to examine
the efficiency of three crediting schemes for set-asides. The results show that if set-asides are integrated into a global
forestry carbon sequestration program that includes a wide range of other management options, then 300 million hectares of
land would be set-aside, and up to 128 Pg C could be sequestered in global forests by 2105. Under alternative policies that
focus exclusively on set-asides, more forestland can be set-asides, up to 3.2 billion hectare, but these policies invite large
leakage in the near-term, and in the long-run, they less net carbon is removed from the atmosphere. Specifically, leakage
is estimated to be 47–52%, depending on the policy, and by the end of the century, up to 17% less carbon will be sequestered
in all forests. |
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