Delegates at a global U.N. meeting to preserve natural resources were on Tuesday trying to agree on ways to deploy about $4 billion in cash to help developing nations save tropical forests.

The talks in the Japanese city of Nagoya are aimed at setting new 2020 targets to protect plant and animal species, a protocol to share genetic resources between countries and companies and more funding to protect nature, especially forests.

The U.N. Food and Agriculture Organisation estimates global deforestation fell from 16 million hectares (40 million acres) per year in the 1990s to 13 million hectares per year in the past decade, with the bulk of the losses in tropical countries.

About 12 percent of the world’s forests are designated primarily to conserve biological diversity, the FAO said in report earlier this month.