Earth Day Network is a large international alliance working to promote a healthy environment and a peaceful, just, sustainable world by organizing events, activities, and annual campaigns. The website includes a Teacher's Corner, which provides resources, guides and fact sheets designed to nurture ecological citizenship and leadership in the classroom. No-cost registration is required to access the full suite of materials. A listing of Earth Day events around the world is available, as are media kits and press releases. Information about current campaigns and ongoing programs include an Ecological Footprint calculation tool, Earth Day dialogues focused on assessing the health of one's community, and a corporate water challenge.