Tourism can bring many economic, environmental and social benefits, particularly in rural areas and developing countries, but mass tourism is also associated with negative effects. Tourism can only be sustainable if it is carefully managed so that potential negative effects on the host community and the environment are not permitted to outweigh the financial benefits. First thing first, the positive effect of tourism for the environment. Tourism, particularly nature and ecotourism, helps promote conservation of wildlife and natural resources such as rain forests, as these are now regarded as tourism assets. It also helps generate funding for maintaining animal preserves and marine parks through entrance charges and guide fees. By creating alternative sources of employment, tourism reduces problems such as over-fishing and deforestation in developing nations. And for the negative effect of tourism for the environment is that t ourism poses a threat to a region’s na...