The World Wildlife Fund (WWF) is the world's leading conservation organization, working in over 100 countries with the mission of stopping environmental degradation and building harmony between humans and nature. It focuses on biodiversity conservation, securing food and water resources, protecting endangered species, combating climate change through renewable energy, and engaging with companies to make supply chains more sustainable. The WWF's conservation initiatives are important as they help both society and nature by preserving forests that store carbon, provide resources and habitat, and may contain undiscovered medical treatments.