SustainUS's mission is to empower young people to advance sustainable development.

Through proactive education, research and advocacy at the policy-making level and at the grassroots, we are building a future in which all people recognize the inherent equality and interdependence of social, economic, and environmental sustainability. We strive to reflect our values through the diversity of members and projects, our ongoing commitment to educating ourselves and others, and the way we live our lives.

http://www.sustainus.org