The
global temperature for January-September is also 1.4C higher
than the preindustrial average (from the years 1850 to 1900),
the institute added, as climate change pushes global
temperatures to new records and short-term weather patterns also
drive temperature movements.
Last month was the warmest September on record globally, with
0.93C above the average temperature for the same month in
1991-2020, and the global temperature of the month was the most
atypical warm month of any year in the ERA5 dataset, which dates
back to 1940.
Scientists have said climate change combined with the emergence
this year of the El Nino weather pattern, which warms the
surface waters in the eastern and central Pacific Ocean, have
fueled recent record-breaking temperatures.
"The unprecedented temperatures for the time of year observed in
September - following a record summer - have broken records by
an extraordinary amount. This extreme month has pushed 2023 into
the dubious honor of first place - on track to be the warmest
year and around 1.4C above preindustrial average temperatures”,
Samantha Burgess, Deputy Director of Copernicus, said in a
statement.
“Two months out from COP28, the sense of urgency for ambitious
climate action has never been more critical,” she said referring
to the United Nations Climate Change Conference.
Last year was not a record, though the world was 1.2C warmer
than pre-industrial times. The previous record belonged to 2016
and 2020 when temperatures were an average of 1.25 degrees C
higher.
The average sea surface temperature for September over 60°S–60°N
reached 20.92C, which is the highest on record for September and
the second highest across all months, behind August 2023,
Copernicus said.
The body's analysis is based on billions of measurements from
satellites, ships, aircraft and weather stations.
Antarctic sea ice extent remained at a record low level for the
time of year, while the Arctic Sea ice extent is 18% below
average.
(Reporting by Charlotte Van Campenhout; Editing by Aurora Ellis)
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