What is the best possible title for the passage I?

Passage – I

Every year there are changes in climate in different parts of the world. Some of these changes are due to natural causes. However, some climatic changes are caused by air pollution and these changes may increase. 
If the pollution affects the level of carbon dioxide in the atmosphere, the results are likely to be serious. Carbon dioxide constitutes only a small part of the atmosphere. But it has an important function in maintaining the balance between radiation from the sun entering the atmosphere and radiation leaving the Earth. Some of the radiation is absorbed by the Earth and some is radiated back into the atmosphere. The carbon dioxide in the atmosphere prevents some of the radiation from leaving the atmosphere. Thus the heat remains in the atmosphere and carbon dioxide helps to prevent the temperature of the Earth from falling.

If the proportion of carbon dioxide in the atmosphere is increased as a result of air pollution, the temperature of the atmosphere may rise. This might eventually cause the ice in the north and the south poles to melt. If this happened, the sea level would rise and parts of the Earth would be flooded. The likelihood of this happening is remote, but the possibility exists.

There is also a fairly strong possibility that the dust level in the atmosphere will rise as a result of industrial pollution. This dust pollution will reflect sunlight back into space. If this happens, less sunlight will reach the Earth and the temperature will fall.

Another danger comes from the destruction of the Earth's vegetation, such as the forests of Brazil, which are being cleared to make way for farmland and cities. Trees use carbon dioxide and their destruction may upset the balance of carbon dioxide in the atmosphere.

 

Passage – II

An acre of rainforest is destroyed every second for farmland we’ll use for a few years and leave. That rainforest is not replaceable. We complain rainforest is not replaceable. We complain there’s not a cure for HIV or many other diseases, but we destroy forest that it’s plants produce many medicines and one of those plants could contain a cure for a disease.

We use huge machinery to destroy the rainforest. These machines release chemicals into the air which pollutes the stuff we breathe into our bodies. Every time we gun that engine or peel our tires we pollute the air. If we want to breathe healthy air so we can enjoy the outdoors, we’re going to have to be more conscious on what we do. What do you think about a huge flood that kills all living things on land? Well, every time you spray the hairspray or cheese in a can you release aerosol which depletes the ozone. Because of our lack of knowledge or care there is now a huge hole over Antarctica. If to much heat gets to the glaciers they will melt overfilling the oceans causing massive floods on dry land. Floods so bad they would kill all living things. Would it kill you to not drive for the fun of it, possibly walk or car pool? Well, since people have over-used the gas of the world we’re facing a shortage of fossil fuel which is what powers our cars. With this problem other problems occur. Air pollution, noise pollution, and over crowding are some to just name a few. This problem needs to be taken care of quickly. The problem of pollution is something has to end and end soon. If something doesn’t stop the pollution will take over and destroy us which is no body’s fault but ourselves. The problem is bad but if we start to clean up now we could still make it a wonderful life (again).