4. By 2020, the UN World Travel Organization predicts that annual international tourists will reach 1.6 billion (UNWTO, 2008).
5. Of each US$ 100 spent on a vacation tour by a tourist from a developed country, only around US$ 5 actually stays in a developing-country destination's economy (UNEP, 2008).
7. International Ecotourism Society Defines Ecotourism As “ Responsible travel to natural areas that conserves the environment and improves the well-being of local people. ”
