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.

Even if you're careful, drugs can end up in water. - The federal government says to throw most unused or expired medications into the trash, not down the drain, but they can end up in the water anyway, a new study finds. The results come as Maine lawmakers consider a bill, among the first of its kind, that would require manufacturers to collect and dispose of unused drugs.

5 dead, dozens hurt in Connecticut power plant blast. - A power plant under construction in central Connecticut exploded with earthquake force that shook homes across much of the state on Sunday as workers purged natural gas lines in preparation for the plant to open this year.