If you are looking for an excuse out of visiting your in-laws this summer, perhaps a better understanding of how your "vacation" may contribute to global warming will do the trick.
The Real Costs is an interesting and possibly useful plug-in for the Firefox browser that adds emissions data to the results page on air travel e-commerce sites like Expedia.com, Travelocity.com, or NWA.com. Later versions will provide CO2 data for driving directions, car rentals, and even shipping.
Download it at http://therealcosts.com/
Bridget McKinley




