Englisch vortrag korrigieren?

Hey leute ich muss moregn ein referat über Overpoulation halten.
könnte einer mal rübergucken?

For the majority of the two million years of human history, the population was less than a quarter of a million.
It tooks thousands of years (until 1800) for the population to reach thefirst billion. In 1930 the population reached 2 billion, 3
billion in 1960, 4 billion in 1974, 5 billion in 1987 and 6 billion in 1999. The time interval in which the population rose to a billion has been reduced by more than half, now it lies by 10 years.
The growth of the population is currently 1.8%, if we will not change anything the dense will soon be one person per square meter.And in 2400 years the earthmass will be the same like people mass.

Impacts of an overpopulated world are most of all Global warming, deforestation, pollution
of air, soil and water. More people on the planet means there
is less water, food, energy and space to go around.

Maybe you ask, why population grows so quickly! Well, ist has increased because of improvements in medicine, sanitation, agriculture and technology. So people could live for more periods of time. For example, the U.S life expectancy
in 1900 was 47 years and by the end of the century it was 77 years.

And the ways how we can decrease it, i have divided in good and bad ways.
The good way to decrease it are:
Contraception
Small Families
and Abstention

The bad ways are:
Accidents
Murder
War
Famines etc.


To illustrate you how to solve such an problem I have picked the iran as an example.
Iran started a big awreness campaign, in wich religios leaders were involved and national family planning law was passed. Women got educated and contraceptives were made free of charge
Furthermore Couples were required to take
a class on modern contraception before receiving a
marriage licence.

The result of all of this was that a typical Iran family dropped its size from 7
children to less than 3. Between1987 and 1994 Iran cut its population growth rate by half. The
important thing to note here is that if a country based on a tradition of Islamic fundamentalism can do this, then any other country can do it too.


(auf rechtschreibung muss nciht soo sehr geachtet werden.)

danke im vorraus

diwajan