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Cool: Earth's 16-Month Record Heat Streak Finally Ends

Last month was merely the second hottest September on record; global land temperatures in September still set a record high

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    Getty Images/Science Photo Library, File
    Scientists say the Earth finally broke a 16-month heat record streak in September.

    Earth's 16-month sizzling streak of record high temperatures is finally over, according to one group of federal meteorologists.

    The National Oceanic and Atmospheric Administration said last month's 60.6 degrees (15.9 Celsius) was merely the second hottest September on record for the globe. That's ever so slightly cooler — a few hundredths of a degree — than the record set in 2015. But it was quite a bit warmer — 1.6 degrees (0.9 Celsius) — than the 20th century average.

    Global average temperatures include both land and sea surface readings. And while oceans were cooling off a tad, global land temperatures in September still set a record high, NOAA climate scientist Jessica Blunden said. It was an unusually hot month in much of Europe, Asia, Africa and North America.

    NASA, which averages global temperature differently, considers last month as record hot. But the space agency didn't have a big consecutive hot streak because it didn't consider last June as record hot.

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    "It's kind of nice to see it cool down a little bit even though it will go back up again," Blunden said. "It may not be a record now because we have natural variations in weather and climate. There's always going to be ups and downs but that doesn't mean global warming isn't happening."

    The fact that despite the end of El Nino — a warming of the central Pacific that tends to spike global temperatures — the world came close to setting another heat record "is quite a feat and offers evidence that global climate change is contributing to these monthly records/near records," University of Oklahoma meteorology professor Jason Furtado said in an email.

    The end of El Nino will "just give us a brief respite, since the global trend will continue mercilessly until we stop it by getting off fossil fuels," said climate scientist Stefan Rahmstorf of the Potsdam Institute in Germany.

    Burning coal, oil and gas puts heat-trapping carbon dioxide in the air, a main contributor in climate change.

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    Blunden said this year is still on pace to be the hottest on record, beating the mark set in 2014 and then broken last year. Meteorologists said three record hot years in a row would be unprecedented.

    Through September, this year is 1.6 degrees warmer than the 20th century average and nearly a quarter of a degree warmer than the first nine months of 2015.

    Records go back to 1880.