We prove that treasure hunting isn't just for pirates, getting out on the streets of NYC for a little introduction to GPS and geocaching.

We explore the greenhouse gas implications and greenway solutions of travel in the Big Apple, talking with David Lutz of The Neighborhood Open Space Coalition. For more info visit: www.treebranch.org www.walkny.org

We sat down to talk with Michael Mandiberg, creator of Real Costs, a web plug-in that hopes to raise traveler consciousness by defining carbon emissions resulting from air travel comparative to other forms of transportation. For more information visit www.therealcosts.com