This chapter presents an overview of the principal science and policy issues related to REDD’s success or failure.
Science background
According to the IPCC, the premier consensus-based scientific body on all aspects of natural and anthropogenic climate change, warming from anthropogenic causes of the climate system is widespread. The concentration of atmospheric CO2 has increased from a pre-industrial level of about 280 ppm1 to 379 ppm in 2005 (IPCC 2007: 25).2 The concern is that we have reached a tipping point that could lead to permanent damages and significant, difficult to evaluate, costs.
It is believed to be “very likely that anthropogenic greenhouse gas increases caused most of the observed increase in global average ...
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