User:Cassology/sandbox

A study was conducted on the west coast of the United States to see ocean acidification’s effects on pteropods. Limacina helicina was used to test the sensitivity of increasing pH. The shell of a pteropod was immersed in ocean water with the projected pH level that the water will reach by the year 2100. After a month and a half in the water, the shell had almost completely dissolved. The arctic food chain would be disrupted by the near extinction or migration of polar bears. Arctic sea ice is the polar bear’s habitat. It has been declining at a rate of 13% per decade because the temperature is rising at twice the rate in terms to the rest of the world. By the year 2050, up to 25000 polar bears will vanquish if the sea ice continues to melt at its current rate.

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