Pollution means any contamination of air, soil, water and environment. Even loud noise and sound are part of pollution. Pollution can be categorized into land, water and air pollution. Harmful gases and tiny particles (like carbon dioxide, nitrogen dioxide and sulphur dioxide) are polluting the air. The smoke released from burning fuel from factories and cars, are the major sources of air pollution. Air pollution is one of the major causes of that funny cough, asthma and burning eyes that you develop.
In addition to this, our water gets polluted because of the dirty water from our house, that drains through the pipes into the rivers and oceans dirtying the water. At last, plastic and dirt causes land pollution. We need to prevent all kinds of pollution to protect the environment. Besides ourselves, many animal species are the victims of pollutions.

Pet flea treatments can be dangerous, more safety steps in the works, EPA says. - Warning that the powerful poisons can endanger some dogs and cats, the U.S. Environmental Protection Agency will require new instructions and labeling for on-spot flea products, which include the popular Frontline and Advantage brands.

Most power plants still spewing toxic mercury, report says. - Many of America's coal-fired power plants lack widely available pollution controls for mercury, and mercury emissions recently increased at more than half of the country's 50 largest mercury-emitting power plants, according to a report Wednesday.