Managing global environmental resources is a difficult task, as binding rules must be agreed internationally, but must be implemented at the national level. A wide range of international environmental agreements (IEAs) have been negotiated to address specific environmental considerations. Major international conventions for biodiversity conservation include the Convention on Biological Diversity (CDB), the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), the Convention on the Conservation of Migratory Species (CMS), the International Treaty on Plant Genetic Resources for Food and Agriculture (ITPGRFA), the Convention on Wetlands (also known as the Ramsar Convention). , the World Heritage Convention (WHC) and the International Convention on plant protection (IPPC). These contracts differ in size and participation, but all have more than 120 signatories. Nevertheless, the effectiveness of these international treaties is a concern (Young 2011) and the decline of biodiversity remains a central theme of the global environmental agenda. The climate literature has drawn attention to the breakdown of public (primary) and private (secondary, local or secondary) services (R-bbelke 2006). Pittel and Rebbelke 2008; Longo et al. 2012; Pittel and Rebbelke 2012; Finus and Rebbelke 2013).
Local benefits have been found to be considerable in size relative to overall or even greater benefits (Pearce 2001). In the area of biodiversity conservation, several studies focus on the local (or secondary) benefits of conservation, such as Perrings and Gadgil (2003), Hein et al. (2006), Elmqvist (2012), Perrings and Halkos (2012) and Phelps et al. (2012). Winands et al. (2013) explicitly examines the local benefits of biodiversity in a numerical model of an international agreement on biodiversity conservation. We also consider the local benefits of conservation in our model because of their important role in promoting participation in an international agreement on the protection of nature. For the basic model with a stable coalition of 2 elements, the value of the index is “text” and “CGI” – 0.054 . An agreement with a stable bipartisan coalition preserves 5.4% of the world`s biodiversity, which the grand coalition would preserve in addition to that achieved if there was no agreement.