Host a Nature Walk
Most folks know a bit about the flowers they plant in their flowerbeds but can't tell you the names of the native species sprouting up in their tree lawns. Hosting a nature walk around a neighborhood park is a good way to educate the community about green practices and conservation while identifying some of the major players in the world of regional flora and fauna. The USDA Cooperative Extension Office in your area can give you some ideas about how to get started identifying the trees, plants, birds, insects and other critters you share space with. This is a good add-on event when you're already hosting an outdoor activity in a natural setting.