Pollution

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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 energy. 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.

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News tagged with pollution

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New climate targets may not change daily life much (AP)

New climate targets may not change daily life much

Space & Earth / Environment

created Nov 27, 2009 | popularity 3.5 / 5 (16) | comments 20

(AP) -- Americans' day-to-day lives won't change noticeably if President Barack Obama achieves his newly announced goal of slashing carbon dioxide pollution by one-sixth in the next decade, experts say.


Obama to plead US case at global warming summit (AP)

Obama to plead US case at global warming summit

Space & Earth / Environment

created Nov 26, 2009 | popularity 1.7 / 5 (6) | comments 2

(AP) -- President Barack Obama will commit the United States to substantial cuts in greenhouse gas pollution over the next decade - despite resistance in Congress over higher costs - when he travels to a ...


Ohio school district sues over air pollution

Space & Earth / Environment

created Nov 28, 2009 | popularity 5 / 5 (1) | comments 0

(AP) -- A school district near Cincinnati is suing a plastics plant, accusing it of continuing to release chemicals in the air that exceed government safety standards.


coughing

Research reveals exactly how coughing is triggered by environmental irritants

Medicine & Health / Research

created Nov 23, 2009 | popularity 4 / 5 (1) | comments 0

(PhysOrg.com) -- Scientists have revealed how environmental irritants such as air pollution and cigarette smoke cause people to cough, in research published today in the American Journal of Respiratory an ...





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Cutting greenhouse pollutants could directly save millions of lives worldwide

Space & Earth / Environment

created Nov 25, 2009 | popularity 2.1 / 5 (14) | comments 6

Tackling climate change by reducing carbon dioxide and other greenhouse emissions will have major direct health benefits in addition to reducing the risk of climate change, especially in low-income countries, according to ...


Exposure to both traffic, indoor pollutants puts some kids at higher risk for asthma later

Medicine & Health / Health

created Nov 24, 2009 | popularity not rated yet | comments 0

New research presents strong evidence that the "synergistic" effect of early-life exposure to both outdoor traffic-related pollution and indoor endotoxin causes more harm to developing lungs than one or the other exposure ...


Exposures to metals and diesel emissions in air linked to respiratory symptoms in children

Medicine & Health / Health

created Nov 23, 2009 | popularity not rated yet | comments 0

Exposure shortly after birth to ambient metals from residential heating oil combustion and particles from diesel emissions are associated with respiratory symptoms in young inner city children, according to a new study by ...


Asian carp may have breached barrier protecting Lake Michigan

Biology / Ecology

created Nov 24, 2009 | popularity 5 / 5 (5) | comments 0

Two feared species of Asian carp have zoomed beyond the $9 million electric barriers built to keep them out of Lake Michigan. Now, the only thing left between the carp and the Great Lakes is a lock and dam in southern Chicago.


Climate experts debate strategies for reducing atmospheric carbon and future warming

Climate experts debate strategies for reducing atmospheric carbon and future warming

Space & Earth / Environment

created Nov 25, 2009 | popularity 2.6 / 5 (13) | comments 20

(PhysOrg.com) -- Reducing carbon dioxide to safe levels may require extracting carbon from the air, says Cornell climate researcher.



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