NewEnergyNews: 420 Million-Year Heat Coming?

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    Friday, April 07, 2017

    420 Million-Year Heat Coming?

    Earth Could Reach Warming State Unseen In The Last 420 Million Years, Study Warns

    Alexandra Lozovschi, 6 April 2017 (Tech Times)

    “If current rates of burning fossil fuel are maintained over the next 100 to 200 years, carbon dioxide concentrations in the Earth's atmosphere could [rise from today’s 400 parts per million (ppm) to over 900 ppm at the beginning of the 23rd century], the highest level since the Triassic…[The review of 112 published papers compiling over 1,200 estimates of ancient CO2 concentrations] showed that, if humanity uses up all available fossil fuels, atmospheric concentrations could boost to levels unprecedented since the beginning of the record…[A]lthough CO2 concentrations normally oscillated throughout the entire studied interval — shifting naturally from nearly 200-400 ppm in the Earth's colder periods to almost 3,000 ppm in warm 'greenhouse' cycles — the global warming speed our planet is currently experiencing is higher than expected…[suggesting that] human activities have a much greater impact than previously considered, since it escalated CO2 concentrations by nearly 50 percent in the past 150 years…” click here for more

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