Flying somewhere anytime soon? Make your flight carbon neutral. Your airline uses a lot of fuel to get you from point A to B, so go to www.carbonneutral.com and use the calculator to determine how much CO2 you added to the atmosphere. The longer you flew, the worse. But no worries; you can neutralize the CO2 by paying them to plant trees or by switching a certain number of lights to compact fluorescents. The calculator will tell you exactly how much neutralizing you'll need to do.