(CNN)Are you still wearing shorts and T-shirts? If you say yes, there's a good reason.
Planet
Earth has definitely experienced its hottest summer since detailed
records have been kept, and according to scientists, it might have been
the hottest in more than 4,000 years.
The
meteorological summer of June-July-August in the Northern Hemisphere
saw its highest globally averaged temperature since records began in
1880, the National Oceanic and Atmospheric Administration reported.
Seven
out of the nine months this year have made their way to the record
books. Now that it's fall, September saw its highest temperature on
record, for land and ocean surfaces.
What do scientists point to for this phenomenon?
"The
unprecedented heat continues to be driven by the strong El Niño in the
Pacific," said CNN senior meteorologist Dave Hennen. "We're now five
months in a row of record highs, and that will likely continue with El
Niño forecast to last well into the spring."
Climate research suggests these are the hottest temperatures the Earth has seen since the Bronze Age.
The
report also said record heat was reported across northeastern Africa
stretching into the Middle East, part of southeastern Asia, most of the
northern half of South America, and parts of central and eastern North
America.
However, not all regions
experienced above-normal temperatures. Southern South America, far
western Canada, Alaska and a swath across central Asia were cooler or
much cooler than average.
"With
a 98% chance that the strong El Niño conditions will last, it is
virtually certain that this year will end up globally being the warmest
on record," according to Hennen.
The
last strong El Niño was back in 1997. That year it wreaked
weather-related havoc across the globe, from mudslides in California to
fires in Australia.
According to NOAA,
the average temperature over global land and ocean surfaces for
September 2015 was at 1.62 degrees Fahrenheit warmer than the 20th
century average.
Experts predict El
Niño will peak in late fall/early winter, and forecasts now suggest it
will remain constant through winter and gradually weaken as spring
settles in.
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