【答案解析】{{B}}A Workshop on China Ecotour{{/B}} While traveling is a lot of fun for the tourists, the development of tourism also brings troubles for the environment, some of which even upset the public order. In view of these problems, the UNEP has put forward a new strategy with ecotourism at its core. As defined by the International Tourism Society, ecotourism is responsible travel to natural areas that conserves the environment and sustains the well-being of local people. Last August, over 20 ecotourism experts, including WWF (World Wildlife Fund) officials and some related local organizations, attended a workshop aimed at drafting an ecotourism plan for the Zharugou Valley in the Jiuzhaigou World Heritage Site. The 5,290-square-kilometre area in northern Sichuan is home to 140 bird species and a great number of endangered plants and animals, including the giant panda and golden monkey. A recent investigation by WWF found that mass tourism to Zharugou would have negative impact not only on the region, but also on surrounding nature reserves. Littering and waste water from tourists as well as construction of tourist facilities in the area are polluting the surroundings both environmentally and culturally. At the workshop, participants reached an agreement on the main principles for developing ecotourism in the Zharugou area: the number of tourists should be limited, as should road construction; the participation of local communities should be encouraged; educational opportunities for visitors to learn about nature should be established; and an emphasis should be put on the Tibetan culture. "Integrating biodiversity conservation into tourism planning can result in bettor business for the industry," said an expert, "Destroying the environment would be considered synonymous with killing the goose that lays the golden egg."