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 is the official website of the United Nations Conference on Sustainable Development (UNCSD), also known as Rio+20, taking place in Brazil on 20–22 June 2012.

The conference will bring together world leaders, governments, the private sector, and nongovernmental organisations to formulate a plan to reduce poverty, create social equity and protect the environment. It is organised around two themes: the green economy, and an institutional framework for sustainable development.

The website publishes information about the conference including background information, overviews and briefing papers on key themes, and other relevant publications. It lists all events and meetings relevant to the conference, and provides information about news and links to external sources as well as ways to connect with involved parties.