地球上的资源是有限的，但是人口去不断在增加。人口的不断增加必然会使得我们人均占有的资源减少，地球的负担在天加重!

    导师分析说，在2050年，地球上的人口将要超过23亿！这么庞大的数字，地球母亲将如何承受呢？人们在住房，社会保障等方面的需要将如何得到满足呢？这确实是一个头痛的问题。下面的文章就是关于地球人口增长的。希望你看过之后能够用引发你的思考，为了以后的生活，从现在起，节约资源！

Experts say the pace of growth - which has seen the number of people on the planet triple since 1940 - poses an increasing danger to citizens.

With more people to feed, house and provide medical care for, they say the world's resources look set to come under more strain than ever before.

As populations stabilise in the industrial world, almost all growth in the near future is expected to take place in developing countries.

Of the 2.3 billion people the UN believes will be added by 2050, more than one billion will live in sub-Saharan Africa. The Indian subcontinent will add some 630 million people.

It will mean less land and water available for each person. Poorer people, who tend to depend more on natural resources, will bear the brunt as they will not be able to compete with the rich.

The major issues will be how to feed the new arrivals, which will see the need for new varieties of improved crops.

Ageing populations are also set to pose a problem with some industrial countries, such as Japan, nearly doubling its share of the population aged 65 and over in the past 20 years. This will put increased pressure on pension and healthcare systems.

 But despite the problems the world is facing, Under-Secretary-General of the UN Dr Noeleen Heyzer said the seventh billion child of the world has a better chance of surviving past the age of five than a decade ago.

The life expectancy for both women and men has also increased in every Asian and Pacific country during the past decade, Dr Heyzer added.

And although the pace of development is 1.1 percent in 2011 - meaning an extra 78 million people will live on the planet by the end of this year - it has slowed down slightly from its peak of 2 percent in 1968.