Each year, 1 billion tourists crisscross the globe, making a huge impact on the environment. Could green travel help fix this problem? Tune in to learn how you can incorporate green travel principles in air travel, hotel stays and buying souvenirs. http://www.howstuffworks.com/ http://www.facebook.com/CoolestStuff http://twitter.com/CoolestStuffHSW http://itunes.apple.com/us/podcast/the-coolest-stuff-on-planet
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