The tourism industry can harm wildlife, plants, and natural ecosystems through habitat destruction, pollution, over-exploitation of natural resources, and visitor traffic to sensitive ecosystems.

Tourism has a profound and often damaging effect on local flora through habitat fragmentation and soil compaction. When thousands of tourists visit "pristine" locations, they often trample small plants and compress the soil, which prevents roots from getting air and water, eventually killing the vegetation and leading to erosion. In 2026, a major concern is the invasion of non-native species; tourists unknowingly carry seeds on their shoes and clothing from one part of the world to another, where these "invaders" can out-compete and choke out native plants. Furthermore, the development of hotels and resorts often leads to direct deforestation and the depletion of local freshwater reserves, which are diverted to golf courses and pools, leaving the native flora to suffer from man-made drought. While "ecotourism" aims to protect plants, the sheer volume of human traffic in 2026 continues to put immense strain on sensitive botanical ecosystems like the Galapagos or the Amazon.