Pollution, global warming.

Talk about pollution.

There are many types of pollution in the world: water, air, lands pollution and soil pollution.

Environmentalists predict that it will be a global warming, so the weather will change. There are problems like greenhouse effects or the famous hole in the layer. I think that we are the first that make our places polluted, in fact we don't respect the environment and we broke all the rules.

Water pollution  is the presence of harmful material in water, such as dissolved metals, waste from farms and factories. 

Air pollution is really dangerous because it may cause breathing problems or worse cancer.

Especially the industry caused soil pollution with gas and petroleum. Also car and discharges demage it. 

Soil pollution is when man made chemicals, such as hydrocarbons, soluents get into the soil,