Project Learning Tree is one of the most widely used environmental education programs in the United States and abroad. Over 500,000 educators have been trained to use PLT materials, and more than 25 million students have been reached in the United States, the Trust Territories, Canada, Sweden, Finland, Japan, Brazil and Mexico. ConocoPhillips is a long-time corporate sponsor.
PLT's mission is to increase students' understanding of our environment; stimulate students' critical and creative thinking; develop students' ability to make informed decisions on environmental issues; and instill in students the commitment to take responsible action on behalf of the environment. Goals are to develop students' awareness, appreciation, understanding, skills and commitment to address environmental issues; to provide a framework for students to apply scientific processes and higher order thinking skills to resolve environmental problems; to increase appreciation and tolerance of diverse viewpoints on environmental issues; to stimulate creativity, originality and flexibility to resolve environmental problems and issues; and to encourage students to become responsible, productive and participatory members of society.