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Hi there. I'm Jeremy Werdell and I'm an ocean scientist at NASA's Goddard Space Flight

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Center. I study how the ocean are changing as we see rising levels of carbon

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dioxide in the atmosphere. Now the oceans are doing us a huge a favor

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they soak up about half to a third of all the carbon dioxide

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that man puts into our atmosphere, but they're very, very sensitive

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to rising atmospheric temperatures. Fortunately we have a number of great tools

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for measuring this greenhouse gas including the new Orbiting Carbon Observatory

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2. It's really. really helping us better understand how this

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greenhouse gas is warming the Earth.