Beginning of Essay
This essay is going to describe what is and what it does.It is also going to say what causes and the consequences of it. What is meant by the term the greenhouse effect is that the heat from the sun comes into the Earth's atmosphere and cannot get o ....

Middle of Essay
.... which are entering the atmosphere even faster than carbon dioxide are methane and chloroflourocarbons, although they are not as damaging in the long run. These increases are likely to affect worldwide temperatures dramatically. In 100 years time the average temperature for most parts of the world will increase from between 2C to 6C if greenhouse pollution continues at its present rate. This temperature increase would drastically affect the growth of many different crops and cause the polar ice caps to melt, thus increasing sea levels to rise up to several metres. If this rise in sea level was to occur many areas would be much more pr ....