Sunday, June 29, 2008

Growth of oxygen-poor zones in the Pacific Ocean

On 05/18/08, RTSea wrote: Interesting but disturbing article in the Los Angeles Times regarding the growth of oxygen-poor zones ( Noting the expansion of the Pacific's zone along Mexico/Central America/South America, these zones are typically deep water but have been increasing in size, extending further north and south and becoming more shallow. These zones are different from equally dangerous "dead zones" caused by fertilizer-fed algae blooms, but have the same effect on sealife, pushing fish populations into different regions or oceanic stratas that can impact their health or expose them to a greater potential for over-fishing as their numbers increase in shallower waters.

The culprit behind this expansion, according to scientists from Germany to California, is global warming. As ocean temperatures increase due to the accumulation of greenhouse gases in the atmosphere, the water's ability to retain oxygen is compromised. One more domino effect that we must address and that proves that the health of the oceans is undeniably linked to our actions on the land.

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