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Record hot year may be the new normal by 2025

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Record hot year may be the new normal by 2025

Posted: 09 Nov 2016 08:47 AM PST

The hottest year on record globally in 2015 could be just another average year by 2025 if carbon emissions continue to rise at their current rate, according to new research…And no matter what action we take, human activities had already locked in a “new normal” for global average temperatures that would occur no later than 2040…

The results revealed that while global average temperatures would inevitably enter a new normal under all emissions scenarios, this wasn’t the case at seasonal and regional levels.

“It gives us hope to know that if we act quickly to reduce greenhouse gases, seasonal extremes might never enter a new normal state in the 21st Century at regional levels for the Southern Hemisphere summer and Northern Hemisphere winter,” Dr Lewis said….

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Sophie C. Lewis, Andrew D. King, Sarah E. Perkins-Kirkpatrick. Defining a new normal for extremes in a warming world. Bulletin of the American Meteorological Society, 2016; DOI: 10.1175/BAMS-D-16-0183.1

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