Firstly, tourism has an adverse impact on biodiversity. As stated in the passage, many natural environments will have to give way to hotels, resorts and theme parks. There will also be air pollution from the carbon emissions that vehicles produce while transporting tourists. When natural environments are cleared, many different species of plants will be cleared, along with the animals living there. The air pollution will also affect the health of the animals (including humans) and plants living in the country. In Singapore, the transportation networks essential for tourists has also affected our biodiversity adversely. By the end of 2015, there were over 750 more new buses on the road. These new buses will cause more carbon emissions into the environment and affect our biodiversity. Large amounts of carbon dioxide gases in the air is not only harmful to animals, which also includes humans, but also plants. Hence, natural environments giving way to mass tourism and increase in transportation networks for mass tourism has an adverse impact on biodiversity that threatens to destroy a country's environment and affect the local people.