Furthermore, environmental protection should be implemented due to warm climate changes and flood which heighten the risks of spread out pests and vector diseases. Some infectious diseases such as malaria, dengue, cholera and encephalitis can also spread out rapidly throughout the whole area by mosquitoes, flies and other insects those usually adapt to live in warm weather region. As World Health Organization notes that contamination of water resources due to the occurrence of flood enlarge the chances of getting water-borne diseases and also for mosquitoes to carry disease around the environment (2010, internet). Malaria and dengue fever have threaten the Southeast Asia and South Pacific island due to the climate change as increases the population of mosquitoes and migration of refugees (Allianz Knowledge Partnership,2008.internet). Hence, it can be concluded that flood and climate change will destroy our safety health environment. Moreover, high temperature in the river will encourage the growth of algal broom and causes the water pollution index to increases and decrease the amount of oxygen supplied for the aquatic organisms. Since the river water pollution increases dramatically, the level of biochemical oxygen demand which known as BOD level also will increases. The higher the biochemical oxygen demand level will result in the higher of the pollution level. For instance, large amount of blue-green algae devastate the nature of the universal solvent and threaten the public health by releasing toxins into the water. 

The environment is the life of every person so every human being needs to know the protective environment. He also has some activities to protect the environment: savings, limited use of agricultural paper, monthly with his friends to rub around the lake. In the local area, he propagated the planting of many trees and flowers