Philipp Aerni's presentation on ‘Positive Externalities’ at the international forum in Costa Rica questioned conventional theory on payments for environmental services. The forum explored how payments for the environmental services provided by tropical forests can support forest owners and managers to increase incomes and manage forests sustainably. Costa Rica hosted the forum because of its groundbreaking experiences in innovative payments for environmental services. The forum was co-organized by the International Tropical Timber Organization (ITTO), the Food and Agriculture Organization of the United Nations (FAO), and Costa Rica’s National Fund for Forest Finance (FONAFIFO).
The latest issue of ITTO’s Tropical Forest Update (TFU) summarizes the presentations and outputs.