http://www.gefweb.org/
The Global Environment Facility was established to forge international cooperation and finance actions to address four critical threats to the global environment: biodiversity loss, climate change, degradation of international waters, and ozone depletion. Related work to stem the pervasive problem of land degradation is also eligible for GEF funding. The site provides information on participants, projects, partners and operational policies of the GEF.

http://www.ipcc.ch/pub/reports.htm
Intergovernmental Panel on Climate Change, third assessment reports on The Scientific Basis Impacts, Adaptation and Vulnerability Mitigation.

http://www.undp.org/cc/nonannexi1.htm
A United Nations Development Programmes site, provides information on COP Decisions related to non-Annex 1 countries procedures for preparation of National Communications. The site also has links to UNFCCC, Kyoto Protocol Document and GEF operational guidelines.

http://www.unfccc.de/resource/index.html
A resource site from United Nations Framework Convention on Climate Change. The site provides information on various resources such as Guide to the climate change process, National Communication, Country information and Climate change information kit.

http://www.tiem.utk.edu/~sada/
Spatial Analysis and Decision Assistance (SADA) is free software that incorporates tools from environmental assessment fields into an effective problem solving environment. These tools include integrated modules for visualization, geospatial analysis, statistical analysis, human health risk assessment, cost/benefit analysis, sampling design, and decision analysis.