On our blue planet, we can find many forms of pollution which cause the greenhouse effect. Many now believe that human activity is responsible for the climate change.
_Air pollution is generally caused by the release of chemicals into the atmosphere. Those are produced by industry and motor vehicles.
China, the United States, Russia, Mexico and Japan are the world leaders in air pollution emissions. Sulfur dioxide and oxides of nitrogen that are emitted by this air pollution can cause acid rain.
_A lot of chemical products are thrown in the rivers by industry. This water pollution is dangerous for the fish and other species of animals who drink this water.
_ Soil contamination occurs when chemicals are released by spill for example.
_We have been discovering radioactivity for 50 years; unfortunately it now causes radioactive contamination.
We have to protect our blue planet !
For more informations :
Air pollution - Wikipedia, the free encyclopedia
Water Pollution
Soil Contamination - Environmental Protection Agency
http://www.dailymotion.com/video/x17xos_bande-annonce-une-verite-qui-derang
By Napoleon
