Environmental advocacy groups are organizations that work to protect the natural environment and promote sustainable practices. They focus on issues such as climate change, pollution, wildlife conservation, and the preservation of natural resources. These groups often engage in activities like public education, lobbying for policy changes, and organizing community events to raise awareness about environmental issues. Many environmental advocacy groups collaborate with governments, businesses, and local communities to create positive change. They may conduct research, provide resources, and support grassroots movements. Notable examples of these organizations include the Sierra Club, Greenpeace, and the World Wildlife Fund.