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Croissance de la population 3nx2f

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Exercice d'anglais "Croissance de la population" créé par connecter à votre compte pour sauvegarder votre résultat.

In the next forty years, the earth will need to accommodate nearly 3 billion more people. That's more than the current population of the whole of Europe, , North and South America combined.

How can we be so sure of this prediction? Well, we know that there are more than a billion teenagers alive today and most of those teenagers will have children of their own and live grandparents and that's all that needs to happen for there to be 9 billion humans alive in 2050.  It's not people having huge families.  It's just a lot of people doing .

We also have a good idea of where these additional people will live.  There are likely to be 10 million more people in Britain.  A hundred million more in the United States of America.  to become the most populous country in the world.

The population of some countries will shrink: Japan, Russia, and much of Eastern Europe.  The places that will experience the most rapid growth are also the least developed .

  Afghanistan's population will double.  Most of sub-Saharan Africa will double.  Niger's population is predicted to more than triple.  I think everyone living through the next fifty years is going to be changes wherever they are.

  For most of human existence, our population size by nature just as it is for other animals. If there's plenty of water, food and materials for shelter, a population will thrive. But when disease, famine or drought strike, life .

The history of humanity is one of overcoming these environmental limits but it took us a very long time to achieve.

here we have time over the last 10,000 years. On the vertical axis here, we have the size of the human population in billions of people. Over the last 10,000 years in general, there has . It's a very boring picture. But from about the year 1800 onwards, you have a major increase - a very large increase - in the world's population from about 1 billion up to 7 billion today.