Earth Day turns 43 on April 22, and the event started by U.S. Senator Gaylord Nelson in 1970 continues to grow in popularity and impact. In fact, Earth Day has gained such widespread acceptance that major retailers and beloved brands now get in on the act. That's not just good news for the environment, but for all of us as consumers, too. Freebies and sales abound, and we've gathered the best of the lot here.
List and captions courtesy of Dealnews
