overpopulation小论文求一篇文章关于overpopulation,要扯到环境上,随便扯,中文也行,英文最好,在线翻译滚.英文的话1000单词中文的话,有条理简单点

Question

overpopulation 小论文
求一篇文章 关于overpopulation,要扯到环境上,随便扯,中文也行 ,英文最好,在线翻译滚.
英文的话 1000单词
中文的话,有条理简单点

Answer 1

Overpopulation is a generally undesirable condition where an organism's numbers exceed the carrying capacity of its habitat.The term often refers to the relationship between the human population and its environment,the Earth,or smaller geographical areas such as countries.Overpopulation can result from an increase in births,a decline in mortality rates,an increase in immigration,or an unsustainable biome and depletion of resources.It is possible for very sparsely populated areas to be overpopulated if the area has a meager or non-existent capability to sustain life (e.g.a desert).
The recent rapid increase in human population over the past two centuries has raised concerns that the planet may not be able to sustain present or larger numbers of inhabitants.Steve Jones,head of the biology department at University College London,has said,"Humans are 10,000 times more common than we should be".The InterAcademy Panel Statement on Population Growth has stated that many environmental problems,such as rising levels of atmospheric carbon dioxide,global warming,and pollution,are aggravated by the population expansion.Other problems associated with overpopulation include the increased demand for resources such as fresh water and food,starvation and malnutrition,consumption of natural resources faster than the rate of regeneration (such as fossil fuels),and a decrease in living conditions.However,some believe that waste and over-consumption,especially by wealthy nations,is the force putting strain on the environment,not overpopulation.
Overpopulation has substantially adversely impacted the environment of Earth starting at least as early as the 20th century.There are also economic consequences of this environmental degradation in the form of ecosystem services attrition.Beyond the scientifically verifiable harm to the environment,some assert the moral right of other species to simply exist rather than become extinct.Environmental author Jeremy Rifkin has said that "our burgeoning population and urban way of life have been purchased at the expense of vast ecosystems and habitats....It's no accident that as we celebrate the urbanization of the world,we are quickly approaching another historic watershed:the disappearance of the wild."
Says Peter Raven,former President of the American Association for the Advancement of Science (AAAS) in their seminal work AAAS Atlas of Population & Environment,"Where do we stand in our efforts to achieve a sustainable world?Clearly,the past half century has been a traumatic one,as the collective impact of human numbers,affluence (consumption per individual) and our choices of technology continue to exploit rapidly an increasing proportion of the world's resources at an unsustainable rate....During a remarkably short period of time,we have lost a quarter of the world's topsoil and a fifth of its agricultural land,altered the composition of the atmosphere profoundly,and destroyed a major proportion of our forests and other natural habitats without replacing them.Worst of all,we have driven the rate of biological extinction,the permanent loss of species,up several hundred times beyond its historical levels,and are threatened with the loss of a majority of all species by the end of the 21st century."
Further,even in countries which have both large population growth and major ecological problems,it is not necessarily true that curbing the population growth will make a major contribution towards resolving all environmental problems.[54] However,as developing countries with high populations become more industrialized,pollution and consumption will invariably increase.