Write a concluding paragraph for your outline. rewrite your thesis statement for you concluding statement. make it short and simple here my outline illegal immigration: the cause of overpopulation in the united states what attracts the citizens of other countries to migrate to the u. s.? whether it is the stable economy, the safe environment or the lifestyle, the overpopulation problem creates a problem in the population capacity of the country. the problems that overpopulation carry is an increase of energy usage, urban crowing, decline in water availability, agriculture interruptions due to suburban development and a direct effect in nature and species. how is our economy affected? lack of education and poor human resources tend to bring a number of issues, like crime, poverty and less job opportunities. contrary to what it is believed, the growing of population does not mean that demand will actually grow faster than supply. here is my introduction and thesis statement the united states is thought to be the country of opportunities; no wonder it is one of the main targets for most people who think of migrating to another country. it is widely recognized that the united states in an overpopulated country. over-population causes many social problems such as lack of public services and poor education. however, it is important to discuss the problems that arise from overpopulation.