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Scientists are finding clues about how climate change could affect marine life by looking deep into the global ocean's past experiences with warming. Through analysis of ocean sediment data, researchers found that the last time the planet underwent a major temperature change at the end of the last ice age, ocean oxygen levels fell sharply along the continental margins in the eastern Pacific Ocean. The findings raise concerns about whether warming conditions will make certain parts of the ocean uninhabitable for a wide range of marine life that needs oxygen to survive. [Source: Scientific American]
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