The Stockholm Environment Institute is an international not-for-profit research organisation that aims to promote sustainable development through scientific analysis that supports decision-making on the national and international level. It focuses on four broad themes: reducing climate risks; managing land, water and air resources; improving governance; and developing new visions and pathways to development. The website provides free access to the institute's publications, describes current projects and links to useful modelling or policy tools such as LEAP (the Long-range Energy Alternatives Planning system) and IPAT-S.

This website, run by the UN Development Programme, provides background information, and links to relevant documents, on climate change and adaptation, water governance, integrated water resources management, water supply and sanitation, capacity development and knowledge management.

The UN Collaborative Programme on Reducing Emissions from Deforestation and Forest Degradation in Developing Countries (UN-REDD Programme) was established in July 2008, to help establish a REDD programme within the UN Framework Convention on Climate Change (UNFCCC). This website provides information on programme donors and projects, as well as links to other relevant sites and documents.

This is the official website for information sharing on reducing emissions from deforestation and forest degradation (REDD) and related topics, under the UN Framework Convention on Climate Change (UNFCCC). This platform makes information provided by various stakeholders involved in UNFCCC processes available in the areas of technical assistance, demonstration activities, country specific information, and methods and tools. Details of relevant meetings and events are also included.

This site contains all National Adaptation Programmes of Action (NAPAs) so far submitted to the UN Framework Convention on Climate Change (UNFCCC).  It includes a rationale for NAPAs, a brief history of NAPAs and a short account of the process involved in preparing a NAPA. There are links to the relevant policy documents under the UNFCCC on the site, including the decisions that establish the NAPA process.

NAPAs submitted by countries to date are posted as pdfs in English and sometimes French.