The UN leads environmental policy development through the work of some key bodies.
The High-Level Political Forum on Sustainable Development was established in follow-up to the outcome of the 2012 UN Conference on Sustainable Development (Rio+20) to replace the Commission on Sustainable Development. The Forum is a subsidiary of the Economic and Social Council and General Assembly.
The Commission on Sustainable Development (CSD) is a subsidiary of ECOSOC with primary responsibility for environmental questions.
The Intergovernmental Panel on Climate Change is a specialized expert body to review scientific research and report to policy makers.
The UN Forum on Forests is a subsidiary of ECOSOC; it took over the tasks of the two predecessor bodies listed below.
The Inter-governmental Forum on Forests (IFF) was a predecessor body of the UN Forum on Forests, 1997-2000.
The Ad hoc Inter-governmental Panel on Forests (IPF) was a predecessor body of the Inter-governmental Forum on Forests, 1995-1997.