This print magazine represents just one piece of OnEarth. On our web site you'll find much more: blogs; slide shows; videos; podcasts (including a unique library of contemporary American poets reading and discussing their work); and interviews with writers, scientists, and various other characters featured in our articles.

Now we plan to add another feature -- you. This September marks the launch of Greenlight, a citizen journalism blog designed to showcase the ideas and happenings that matter to you and others like you. We're creating a new forum for people who like to think and talk about the environment and global sustainability: concerned citizens, budding reporters, students, activists, videographers, photographers, local problem solvers, troublemakers (the good sort), and many others.

Through Greenlight you can visit different neighborhoods, just by clicking on a map. Tune in to what's going on in particular locations, from Brooklyn to Thailand, or even in your own backyard. You can read profiles of other contributors-find out where they come from and what they care about, what they've written or recorded. Contribute your own story, a photograph with some commentary, a video. We're interested in how you think about big solutions to global problems as well as your plans to solve more personal challenges-creating a more environmentally friendly home, apartment, classroom, campus, lifestyle.

Tell us where you go to have a good meal (organic or locally grown, of course), to buy farm-fresh produce, to take a walk and reconnect with nature -- and yourself. Review a movie, video, book, or Web site. Taking a trip somewhere? Share a journal of your travels. If you've attended a town hall meeting, tell us what you heard.

The more you participate in Greenlight, the more opportunity you'll have to steer the community as a whole. You'll start off as a stringer, submitting entries to our moderators, who will then post your work. Once we've gotten to know you a little bit, we'll promote you to correspondent so you can post directly to the site, whenever you feel like it. Finally, after working for a while as a correspondent, we'll invite you to help us shape Greenlight as a moderator; you'll be a community editor, setting the tone and guiding the conversation.

OnEarth magazine -- the publication you toss into your backpack or carry along on the train or take to bed -- will still be here, of course. As you can see from this issue, we've got a lot to tell you about: Barry Yeoman's discovery of an impending water crisis in northern California's Sacramento Delta; Elizabeth Royte's trashy adventures at Disney World; Mike Goldwater's photographic journey to a small, remote, energy-independent Scottish island; Elizabeth Kolbert's bracing assessment of U.S. climate politics; Lisa Selin Davis's on-campus visit with the next generation of environmentalists; and Alan Burdick's weird immersion in an utterly paperless world. We'll keep telling you good stories. Now we want to hear yours, too. Join us on the Web at onearth.org/greenlight.

Douglas S. Barasch