Earth Day was first celebrated in 1970, the idea of then-Wisconsin senator Gaylord Nelson, who saw the event as a nationwide "teach-in." Well, we've come a long way since then, but the idea of Earth Day has never been so important. Living a greener life is no longer some sort of hippie ideal or left-of-center concern, it is, in short, the only way to keep the planet on which we live functioning for those who live here now and for generations to come.

Sure, Earth Day should be every day, but since it is today (the March equinox), here are a few things you can check out that might give you some food for thought: Read more...