National Inventory of Mercury Release into Different Environmental Sectors Estimated by United Nations Environment Programme (UNEP) Toolkit in Costa Rica

United Nations Environment Programme United Nations Human Settlements Programme

United Nations Environment Programme Unep Environmental Effects of Ozone Depletion and Its Interactions with Climate Change: 2006 Assessment

United Nations Environmental Program ( UNEP ) - convened Intergovernmental Negotiating

UNITED NATIONS ENVIRONMENT PROGRAMME Chemicals Branch, DTIE

Payments for Environmental Services in Costa Rica

Costa Rica pioneered the use of the payments for environmental services (PES) approach in developing countries by establishing a formal, country-wide program of payments, the PSA program. The PSA program has worked hard to develop mechanisms to charge the users of environmental services for the services they receive. It has made substantial progress in charging water users, and more limited pro...