This report, published by the UNEP World Conservation Monitoring Centre, highlights areas where high carbon content and high biodiversity overlap. The authors argue that by identifying target areas, such spatial analyses can help tropical countries reduce greenhouse gas emissions from land-use change while maximizing biodiversity benefits.

Regional maps of tropical Africa, tropical Asia and the Neotropics give overviews of carbon stocks and biodiversity values. National-scale maps covering Panama, Vietnam and Zambia show more detailed data on carbon storage and on the species richness of mammals, birds and amphibians.

The maps highlight protected areas of tropical Asia, which suffer the highest percentage of forest loss. The authors suggest that although mapping can help in conservation planning, it must be accompanied by effective management on the ground and monitoring of land-use change to effectively reduce emissions. It is also important to account for national priorities and country-specific pressures.