At the Washington DC Green Festival, a joint project of Global Exchange and Co-op America, they're celebrating what's working in our communities-across the District, Maryland and Virginia-for people, for business and for the environment.

Participants will enjoy more than 125 renowned speakers and 350 green businesses (start your holiday shopping now!), great how-to workshops, green films, a Fair Trade pavilion, yoga classes, organic beer, delicious organic cuisine and live music.

Find out about DC environmental initiatives; and learn how neighbors, community nonprofits and city departments are working together to make their cities healthier places to live.

Click here to see this year's amazing speaker line-up!