The World Wide Fund for Nature (WWF)

The World Wide Fund for Nature (WWF)is a Swiss-based international non-governmental organization founded in 1961 that works in the field of wilderness preservation and the reduction of human impact on the environment. It was formerly named the World Wildlife Fund, which remains its official name in Canada and the United States. WWF is the world's largest conservation organization, with over five million supporters worldwide, working in more than 100 countries and supporting around 3,000 conservation and environmental projects. They have invested over $1 billion in more than 12,000 conservation initiatives since 1995. WWF is a foundation with 65% of funding from individuals and bequests, 17% from government sources (such as the World Bank, DFID, and USAID) and 8% from corporations in 2020.

WWF aims to "stop the degradation of the planet's natural environment and to build a future in which humans live in harmony with nature." The Living Planet Report has been published every two years by WWF since 1998; it is based on a Living Planet Index and ecological footprint calculation. In addition, WWF has launched several notable worldwide campaigns, including Earth Hour and the debt-for-nature swap, and its current work is organized around these six areas: food, climate, freshwater, wildlife, forests, and oceans.

WWF has faced criticism for its corporate ties and for supporting conservation measures that have resulted in violent conflict with local people. WWF is part of the Steering Group of the Foundations Platform F20, an international network of foundations and philanthropic organizations.