Passengers concerned about the impact of air travel on the environment could soon opt for a cleaner alternative.
http://rss.cnn.com/~r/rss/edition_travel/~3/F75oZYo4-2U/index.html
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Passengers concerned about the impact of air travel on the environment could soon opt for a cleaner alternative.http://rss.cnn.com/~r/rss/edition_travel/~3/F75oZYo4-2U/index.html