One distinct difference between the contemporary and early days’ ecotourism definitions isthe emphasis on avoiding the usage of non-renewable resources like fossil fuels and to striveto maximize the revenues of tourism for the local businesses and communities. Whereas theearliest definitions are more about conserving the nature and the culture and learning, themodern definitions, without forgetting the basic principles, are broader in the sense of energyand waste management. It is evident that during the past years these problems have beenalso addressed by many other industries apart from tourism, which indicates the importanceof these issues.