If you are a home-based travel agent with an interest in ecotourism, you might want to take a look at the (mercifully short) Statement on Ecotourism released by The International Ecotourism Society (TIES).
The global ecotourism community has experienced significant growth since 2002, and is continuously evolving. In light of the various changes in the tourism industry in recent years, ecotourism today faces many new opportunities and challenges.

Ecotourism is, indeed, a rapidly expanding niche and overlaps with a number of other tourism specialties including soft adventure travel, cultural tourism, and nature travel. While ecotoruism emphasizes low impact on the environment, travel agents who seek to capitalize on this trend can see significant impact on their bottom lines.