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Home Topics in Depth Science And Environment Earth's oceans are warming 13% faster than thought, and accelerating

  • leftcoastmountains (2622 posts)
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    Earth's oceans are warming 13% faster than thought, and accelerating

    John Abraham

    Friday 10 March 2017 14.00 EST Last modified on Friday 10 March 2017 16.48 EST

    New research has convincingly quantified how much the Earth has warmed over the past 56 years. Human activities utilize fossil fuels for many beneficial purposes but have an undesirable side effect of adding carbon dioxide to the atmosphere at ever-increasing rates. That increase – of over 40%, with most since 1980 – traps heat in the Earth’s system, warming the entire planet.
    But how fast is the Earth warming and how much will it warm in the future? Those are the critical questions we need to answer if we are going to make smart decisions on how to handle this issue.
    At any time the direct effect of this blanket is small, but the accumulated effects are huge and have consequences for our weather and climate. Over 90% of the extra heat ends up in the ocean and hence perhaps the most important measurements of global warming are made in the oceans.
    But measuring the ocean temperature is not straightforward. Since about 2005 a new type of sensing device has been deployed (the Argo float system). These floats (approximately 3500 in total at any time) are spread out across oceans where they autonomously rise and fall in the ocean waters, collecting temperature data to depths of 2000 meters.

    https://www.theguardian.com/environment/climate-consensus-97-per-cent/2017/mar/10/earths-oceans-are-warming-13-faster-than-thought-and-accelerating?CMP=fb_us

    Spanish Devil, mmonk, A little weird and 3 othersjane123, ThouArtThat, h-32 like this
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