Environmental Issues
Main article: Marine pollution See also: Great Pacific Garbage Patch and Ship pollutionThe quantity of small plastic fragments floating in the north-east Pacific Ocean has increased a hundredfold over the past 40 years (2012).
Marine pollution is a generic term for the harmful entry into the ocean of chemicals or particles. The biggest culprits are people who use the rivers for disposing of their waste. The rivers then empty into the Ocean, and with it the many chemicals used as fertilizers in agriculture. The excess of oxygen depleting chemicals in the water leads to hypoxia and the creation of a dead zone.
Marine debris, also known as marine litter, is human-created waste that has ended up floating in a lake, sea, ocean, or waterway. Oceanic debris tends to accumulate at the centre of gyres and coastlines, frequently washing aground where it is known as beach litter.
In addition, the Pacific Ocean served as the crash site of satellites, including Mars 96, Fobos-Grunt and Upper Atmospheric Research Satellite.
Read more about this topic: Pacific Ocean
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