Responsible tourism with a smaller environmental footprint and a focus on sustainability.Tourism is arguably the world's largest industry. It generates about 10% of total world GDP and employs over 10% of the global workforce, and it's on the verge of tremendous growth. In 2005, there were 808 million international tourism arrivals, a figure that the World Tourism Organization expects to reach one billion by 2010.
National Geographic Center for Sustainable Destinations
Sustainable Travel International
Wilderness Journeys
The International Ecotourism Society
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