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Clean Development Mechanism (CDM) forest projects are perceived as an attractive way to both help mitigate climate change and transfer income to rural poor. However, to engender participation of small-scale producers, a CDM forest project must offer sufficient incentives, while minimizing their costs of participation, all the while respecting the need for additionality. Property rights, social capital and contractual rules are critical in the success of CDM forest projects. In this paper, we ask what factors affect participation in the world's first CDM project, established in Guangxi Province, China. Using village-level surveys, we find that although the project facilitates participation through carbon pooling and a share-holding system, much of the project land remains unforested. We find that the primary reasons for the unforested regions are constrained contractual rules, property rights allocation disputes and low levels of social capital in some villages. [Copyright &y& Elsevier]

Photovoltaic poverty alleviation project (PPAP) is initiated to reduce rural poverty and pursue cleaner production, but the lack of reasonable sustainability evaluation has become a challenge. This study evaluates the sustainability of PPAP in order to improve the poverty alleviation performance and efficiency considering an integrated multi-criteria decision-making (MCDM) method combining benefits, opportunities, costs, risks (BOCR) theory, analytic hierarchy process (AHP), interval type-2 fuzzy numbers (IT2FNs), and technique for order preference by similarity to an ideal solution (TOPSIS). First of all, this paper identifies 16 criteria based on BOCR theory from the perspectives of benefits, opportunities, costs, risks and constructs the criteria system. Second, an integrated BOCR-AHP-IT2FTOPSIS method is proposed and applied in processing ambiguous information and comprehensive sustainability evaluation. Third, an empirical case in Guangxi Zhuang Autonomous Region of China, a comparative analysis and a sensitivity analysis are used to rank the alternative PPAPs and verify the effectiveness and robustness of proposed method. The results show that the integrated MCDM method is capable to evaluate and rank the sustainability levels of PPAPs with the contribution of BOCR theory-based criteria system. The work offers a novel sustainability evaluation angle for PPAPs and has potential applications in providing understandings and making decisions. [ABSTRACT FROM AUTHOR]