Going Green on Cross-Country Trips
Thursday, October 11, 2007 5:21 PM
Not all mass transit reduces greenhouse gas emissions.
Take commercial flights, for example. Airplanes contribute about 3 percent of the world's total emissions. That's a small but still notable contribution to the global warming effect triggered by humans.
In fact, about three tons of carbon dioxide are produced for every passenger in a typical commercial flight coast to coast.
So the next time you take a vacation across the country, should you drive instead? No, according to a report today on NPR.
The Green Guide, a publication and Web site by National Geographic, says you will double your emissions if you take a road trip. 
The best green option? Travel by rail. You'll cut your carbon footprint in half. A carbon footprint measures the environmental impact you are making based on the greenhouse gases you produce. It is measured in units of carbon dioxide. Click here to measure your carbon footprint.
Amtrak Vacations lists 30 destination cities in the West (Grand Canyon, San Francisco, Los Angeles), Midwest (Chicago, Dallas, Denver) and East (Boston, New York, Miami).
For those of us in Houston, we'd have to increase our carbon footprint a bit by first driving to San Antonio to catch the nearest train that goes west to Los Angeles.
If you're not traveling anywhere except to and from work, pat yourself on the back every time you board a bus. You're doing your part toward making our city greener.