A roundtrip airplane flight between New York and Los Angeles creates about three tons of CO2 per passenger. One tree can absorb fifty pounds of CO2 every year— about one ton of CO2 over an estimated forty-year lifespan.
—Trees for the Future

PLANES, TRAINS, AND AUTOMOBILES contribute heavily to global warming, so what’s a conscientious travel lover to do? Trees for the Future’s Trees for Travel program plants trees in developing countries to offset vehicular carbon dioxide (CO2). For every dollar you donate, Trees for the Future will plant ten carbon dioxide-absorbing trees in your name. You’ll receive a Global Cooling Traveler certificate and can feel less guilty about your wanderlust. (800) 643-0001; TreesFTF.org