Culture evolution is the major factor responsible for population increase. Early in human development, people invented tools to hunt animals. Later they built shelters to protect themselves. Step by step, they made life easier. As a result, fewer died from natural forces, such as harsh climate and disease.
In the past, when population grew, there was unexplored territory to inhabit. But now, almost all the habitable land has been explored.From joozone.com.
The world's population may reach 8.7 billion in 2033. It is clear that world population is a serious issue that needs careful attention. Human beings are unique to solve problems through cultural evolution.Facing the world population explosion in the near future. We must carry out the birth control program in order to save the mankind and save the world. 英语作文关于人口问题【3】
Many countries will experience aging populations in the next century because of declining birth and mortality rates. China will soon join their ranks.
As for the issue of aging, its situation has been growing increasingly severe in spite of the fact most people are still ignorant of the problems it brings about. Firstly, with families becoming smaller and living pace escalating, it is even graver for families to care for aged members adequately. Secondly, aging causes a relative decline in working force in that fewer people have to support the increasing aged people. Consequently, the productivity of the whole society is affected to some extent. Thirdly and most importantly, the aging of population in China resulted from the successful implementation of family planning has not been synchronized with national economic progress.
The rapidity of the population's aging has made it more urgent for the adoption of countermeasures. No doubt they key is to build a solid economic foundation. Meanwhile, importance shall be attached to overall social progress by changing the backward situation in social security, welfare and service. What's more, family care and community services shall also be encouraged.
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