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Pollution is the introduction of contaminants into an environment that causes instability, disorder, harm or discomfort to the ecosystem i.e. physical systems or living organisms. Pollution can take the form of chemical substances, or energy, such as noise, heat, or light. Pollutants, the elements of pollution, can be foreign substances or energies, or naturally occurring; when naturally occurring, they are considered contaminants when they exceed natural levels. Pollution is often classed as point source or nonpoint source pollution. The Blacksmith Institute issues annually a list of the world's worst polluted places. In the 2007 issues the ten top nominees are located in Azerbaijan, China, India, Peru, Russia, Ukraine and Zambia. Ancient culturesThe forging of metals appears to be a key turning point in the creation of significant air pollution levels. Core samples of glaciers in Greenland indicate increases in air pollution associated with Greek, Roman and Chinese metal production. From Wikipedia under the
GNU Free Documentation License  helixcharter.net 343px x 400px | 55.20kB [source page] Water pollution in the ocean  jot007.canalblog.com 150px x 111px | 8.60kB [source page] Pollution Voila a quoi on en arrive aujourd hui Alors vous voulez continuez a polluer Poste par jot007 a 20 56 From Yahoo Image Search: "Pollution" ![Breakthrough: Tadpoles as pollution detector [lokman]weblog](/ZBPr7-RYLGFXNWBEr7-TBYOs707-s707-n807-CGGUq8-YEHs8-KCFNr7-RTNZVs7-TEBr7-FGBUFOZHUGr7-ARCB-out.jpg) blog.rojakstyle.com lokman Mon, 28 Dec 2009 02:14:46 GM African clawed frog tadpoles modified with jellyfish genes show promise as a faster and less expensive way to detect . pollution. than traditional methods, say a University of Wyoming professor and researchers in France. ...  scipeeps.com clare Mon, 28 Dec 2009 06:09:52 GM News & Articles On Air, Land And Water . Pollution. Causes, Effects And Solutions. Scipeeps.com reveals air, land and water . pollution. causes, effects and types and suggests environmental . pollution. solutions that you need to act on. ...  folks.co.in Team Folks Sat, 26 Dec 2009 17:31:03 GM The . pollution. of our natural environment, the decline of the quality of our air, water and soils, the destruction of numerous ecosystems and consequent loss of species is an obvious fact that can be easily documented. ... From Google Blog Search: "Pollution"  news.google.com PR Newswire (press release) The real story is this: The Port of Long Beach has significantly reduced air pollution . The Port of Long Beach recently achieved its best air quality report ... Environmental Groups Sue Long Beach The Journal of Commerce Online Backroom Deal Leaves Long Beach Truck Program in Hands of Polluting Industry PR Newswire (press release) all 40 news articles » news.google.com Louisville Courier-Journal The state has made public a draft air pollution permit for two new coal-fired boilers at East Kentucky Power Cooperative's Smith plant in Clark County and ... and more » news.google.com TownTimesNews.com watertown - The Town of Watertown Public Works Department (DPW) has announced to the public that copies of the 2009 National Pollution Discharge Elimination ... and more » From Google News Search: "Pollution" How does air pollution affect photosynthesis? Q. I need this as quick as possible... Can any one tell me a detailed but not textbook-ed situation or example of how air pollution affects photosynthesis and how it affects photosynthesis in plants? Asked by davidplastique - Mon Sep 24 00:25:04 2007 - - 2 Answers - 0 Comments A. Well, smog can block out light that is needed for photosynthesis. I bet it also messes with the chemical reaction the plant goes through converting CO2 to sugars and oxygen. Air pollution sometimes comes out of the sky with the rain as "acid rain." This harms the leaves of a plant, which reduces how well it can conduct photosynthesis. Answered by suigeneris-impetus - Mon Sep 24 00:32:16 2007 What would happen if ocean pollution and overfishing continue? Q. What would happen if ocean pollution and overfishing continue? Fish and other marine creatures would all die, but what else? I know the answer, but I can't really put it into words. Also, how much of the Earth's population is dependent on marine life for food? It's pretty high I remember, but I can't find the exact thing. Asked by pattone42 - Sun Dec 21 22:20:33 2008 - - 4 Answers - 0 Comments A. Overfishing and pollution threaten accelerated loss of ocean species: If the long-term trend continues, all fish and seafood species are projected to collapse by 2048.Halibut steak, lobster tail and tuna sandwiches will drop off the human menu like dodo meat by mid-century if marine destruction continues to accelerate, scientists warned Thursday. Overfishing and pollution threaten accelerated loss of ocean species, ecosystems and humans' food supplies, US and Canadian researchers reported in the November 3 issue of the US journal Science. "Our analyses suggest that 'business as usual' would foreshadow serious threats to global food security, coastal water quality and ecosystem stability, affecting current and future generations," the… [cont.] Answered by Heena N - Mon Dec 22 09:35:08 2008 How has pollution damaged the ozone layer? How are we going to tackle this problem?
Q. Chemistry Question: What does pollution do to harm the ozone layer? How are we going to tackle this problem? Please help me! Thanks! Asked by wannabe_smartass - Thu Oct 4 13:15:01 2007 - - 1 Answers - 0 Comments A. In scientific terms I can not help but in layman's terms it goes something like this: pollution thins the ozone layer which in turn lets more harmful sun rays through. It is not good for crops and not good for humans. also another thing it does is gives us the haze during the days that can cause health problems. Use a more efficient fuel. Crack down on business that release all the nasty stuff into the air. Some of which by the way causes cancer among other things. Answered by debbie f - Thu Oct 4 13:21:11 2007 From Yahoo Answer Search: "Pollution" Pollution is the release of environmental contaminants. Unsourced
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