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Use constraints
Using this graphic and referring to it is encouraged, and please use it in presentations, web pages, newspapers, blogs and reports. For any form of publication, please include the link to this page and give the cartographer/designer credit (in this case Riccardo Pravettoni, UNEP/GRID-Arendal)
Source(s)
Gibbs, H., K., et al., Carbon payback times for crop-based biofuel expansion in the tropics: the effects of changing yield and technology, Environmental Research Letters, 2008.
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Uploaded on Monday 27 Feb 2012
by GRID-Arendal
Ecosystem carbon payback time
Year:
2012
Author:
Riccardo Pravettoni, UNEP/GRID-Arendal
Description:
The ‘carbon debt’ of biofuels is the number of years it can take to offset the carbon emissions generated by converting land for biofuels. It can take decades or centuries for some
pathways to bounce back, depending on the type of land that was converted. Particularly challenging is when crops are grown on converted peatland or forest, or areas with underground carbon storage.
The figures are disputed, but even lower figures still
raise serious concerns that need to be addressed.
Analysis applying the concept of ‘ecosystem carbon
payback time’ is useful to identify the right options
for converting land to biofuel production.
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