Our world is suffering, and it is suffering from something people call the "Greenhouse" effect. The greenhouse effect is caused by humans over pollution of the earth. If we do not stop this soon the earth will "die".
We have caused this over many years of over industrialization in this growing world. We think that bigger is better, so we make vehicles bigger and better, and we make pretty much everything else bigger as well. So we make larger factories to build these larger things, and these larger factories release larger amounts of pollution.
Scientist have been predicting the outcome of this change for years now, but none of these scientists believe in the same thing. The ones that do think that it will come at a different time. So people are still optimistic on what is going to happen, and when it is going to take place.
First, to understand what the greenhouse effect is, we must first understand what a Greenhouse is. A Greenhouse is a building made either of clear plastic sheets, or of glass. The sun's rays go through the glass, and heat up the air inside the building, and they have a hard time getting out. These rays get trapped inside the building, and continually heat the air inside, and even through the night the rays stay in and heat the air. The greenhouse is also called a "HOT HOUSE" because it gets so hot.
The greenhouse effect is caused by gases such as carbon monoxide, carbon dioxide, and nitrogen escaping into the atmosphere. These gases get trapped in the ozone layer and do not let the suns rays escape very easily. This causes the earth to warm up. This warming can cause droughts, and this would really affect the farmers. This heating up will cause the plants and animals would die.