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Thanks to the development of medical facilities, life span is more and more prolonged. Although it is thought to be harmless, this actually has a great impact on both individuals and society, which means actions have to be taken to tackle this issue.

There are several effects it has on the whole world. Along with the rate of birth rising gradually, longer life expectancy means that the world will have more population, and more accommodations are in need. Therefore, it could lead to a lack of shelter which causes a significant number of people to be homeless in the future. On account of more population, there could be more emission gases released into the atmosphere because more vehicles are needed. In addition, lands have to be exploited for houses, which means there will be fewer trees, leading to the rise of global temperature.

Various solutions can be carried out to lessen the impacts of this problem. First, the governments can invest in building nursing homes and encourage the elder to live there. This could help to leave more accommodation for people to reside in. Second, residents should be encouraged to reduce the use of their private vehicles. Public transport is an ideal alternative for reducing the exhaust fumes caught in the atmosphere. Moreover, the younger can choose walking as a substitute for cars when going to work or school. Taking all these measures can partly reduce the effects of this issue.

To conclude, this problem is seriously affecting the whole world. Therefore, actions have to be taken by both the governments and individuals to deal with it.