In recent years, there has been rapidly growing interest in ecotourism, and also growing concern over the environmental impact of large-scale tourism, particularly in popular but environmentally sensitive destinations.
70. 近年来，特别是在一些热门但是环境敏感的旅游目的地，对生态旅游的兴趣快速增长，并且人们日益担心大规模旅游业的环境影响。