Monument Valley - The Mittens, originally uploaded by mojo2u.
Ecotourism (also known as ecological tourism) is a form of tourism, that appeals to ecologically and socially conscious individuals. Generally speaking, ecotourism focuses on volunteering, personal growth and learning new ways to live on the planet. It typically involves travel to destinations where flora, fauna and cultural heritage are the primary attractions. Ecotourism is a conceptual experience, enriching those who delve into researching and understanding the environment around them. It gives us insight into our impacts, as human beings and also a greater appreciation of our own natural habitats.
Responsible ecotourism includes programs that minimize the negative aspects of conventional tourism on the environment and enhance the cultural integrity of local people. Therefore, in addition to evaluating environmental and cultural factors, an integral part of ecotourism is the promotion of recycling, energy efficiency, water conservation and creation of economic opportunities for the local communities.
Source: Wikipedia and Randall, A. (1987). Resource economics, Second Edition. New York, USA: John Wiley and Sons.

