Hypoxia: Man-made Environment Issues

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Have you ever had a feeling of hypoxia? Hypoxia, lack of oxygen, happens in verity of area, such as human body, aquatic and subterranean environments. In the last century, hypoxia happens in the whole earth especially china. This is one of the most serious man-made environment issues that Chinese people try to deal with.

Body 1
Blue- green algae are one of the biggest environmental problems because it causes hypoxia. Hypoxia is a phenomenon that occurs in aquatic environments as dissolved oxygen becomes reduced in concentration to a point detrimental to aquatic organisms living in the system.

(Background)

Body 2
In china, lack of oxygen in aquatic environment caused by lots of reasons but all of those results from an overabundance of nutrients of human or natural origin that stimulates the growth of algae.

(Reason)

Body 3
Hypoxia is one of the biggest problem Chinese people faced, and this has lots of awful effect on whole environmental system.
(Disadvantage)

Body 4
People in china do lots of things to solve this problem, such as environmental protection of waterway especially rivers and reducing chemical pollutants.
(Tackle this problem)

Conclusion:
Hypoxia is caused by human and these cause lots of environmental problem and economic lose. Reducing the contamination is our vital mission, and we should spend no effort to deal with the hypoxia.

Reference:
http://medical-dictionary.thefreedictionary.com/hypoxia
20th October

http://www.everything2.com/title/hypoxia
6th November

http://www.ehow.com/info_8674978_manmade-causes-air-pollution.html
6th November

http://www.spiritus-temporis.com/puget-sound-environmental-issues/hood-canal-hypoxia.html
6th November

http://www.enviroliteracy.org/article.php/1431.php
6th November

http://www.citizendia.org/Hypoxia_(environmental)
6th November
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