2017 年 56 巻 5 号 p. 177-180
The overview of REDD+ is presented to facilitate discussion of the special issue on REDD+. REDD+ is an international program intended to mitigate CO2 emissions by conserving forests in developing countries. After 10 years' negotiation, the Paris agreement encouraged to take action to implement and support for REDD+ in 2017. The scientific and historical background of the REDD+ is shown at first, then the framework of REDD+ is illustrated. National Forest Monitoring System (NFMS) and Forest Reference Emission Levels and Forest Reference Levels (FREL/FRL) are focused as important technical issues of REDD+. Remote sensing is expected as a key technique for transparent monitoring of forest carbon. While methodologies for REDD+ have reached the implementation phase, negotiation on REDD+ finance is ongoing under the Green Climate Fund.