… (GIIN) estimates that at the end of 2018, the industry was managing US$502 billion in assets . But conservation projects, particularly … covers 27,000 hectares of coral reefs, sea grass and mangroves. In 1998, the government of Bonaire signed a co-management agreement with … approach, impact investors provide most of the initial funding, with ‘user fees’ generating ultimate returns. Fees can be collected by tour …