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Earth just had its hottest summertime in register history , information release Wednesday ( Sept. 6 ) by the World Meteorological Organization ( WMO ) discover .

June to August 2023 were the hot months ever and are yet another sign thatclimate changeis happening .

World map of global temperatures in July, 2023.

A world map of global temperatures in July 2023.

Global sea aerofoil temperatures broke new records each sequential calendar month , while Antarctic sea ice extent remained at a criminal record low for the current time of twelvemonth .

" Our planet has just stick out a season of simmer — the hottest summer on phonograph record , " U.N. secretary - general António Guterres say in astatement . " mood breakdown has begun . "

The summertime was characterized by relentless heat energy waves around the world . In July , numerous countries — include the U.S. , Mexico , Spain andChina — experienced national heat records , withover 200 heat energy - have-to doe with deathsreported in Mexico alone .

An aerial photograph of a polar bear standing on sea ice.

Related:15 unexpected effects of climate change

Global sea - surface temperature have beenespecially highover the past five month and stay on at record - in high spirits levels throughout April , May , June and July 2023 . In August 2023 , the ocean - Earth’s surface temperature was 69.76 degree Fahrenheit ( 20.98 degrees Celsius ) , outgo the previous March 2016 heat record every individual day that calendar month .

" What we are honour , not only fresh extreme point but the tenacity of these record - breaking condition and the impacts these have on both people and planet , are a exculpated issue of the warming of the climate system , " Carlo Buontempo , director of the Copernicus Climate Change Service , tell in the argument .

A polar bear standing on melting Arctic ice in Russia as the sun sets.

consort to the WMO data , August this class was the hottest on disk " by a large margin " and the hot month ever after July 2023 . The month ’s combined land and sea airfoil temperature was 2.7 F ( 1.5 one C ) higher than the 1850 to 1900 norm .

" Scientists have long warned what our fossil fuel addiction will let loose , " Guterres said . " Surging temperature demand a upsurge in natural process . Leaders must turn up the warmth now for mood solutions . We can still avoid the speculative of climate topsy-turvydom – and we do n’t have a here and now to lose . "

But in the short term , conditions could get bad as El Niño guide configuration .

A photograph of the flooding in Hopkinsville, Kentucky, on April 4.

— We could be 16 long time into a methane - fuel ' conclusion ' event significant enough to terminate an ice age

— Did the Tonga eruption cause this twelvemonth ’s extreme passion ?

— 19 ' wad extinctions ' had CO2 levels we ’re now veering toward , work warn

a firefighter walks through a burnt town

" It is worth noting that this is come about before we see the full warming wallop of the El Niño event , ” WMO writing table - cosmopolitan Petteri Taalas say in statement .

El Niño is a weather convention in which a belt of warm water sits off the Pacific seashore of South America , which often leads to warmer ball-shaped temperatures and uttermost weather event . Heatwaves , fires and floods are likely to increase asEl Niño conditionsdevelop in the tropical Pacific for the first time in seven old age . allot to the WMO , there isa 90 % chancethat the ocean - warming event will continue throughout the second one-half of 2023 .

A man in the desert looks at the city after the effects of global warming.

a satellite image of a hurricane cloud

a firefighter wearing gear stands on a hill looking out at a large wildfire

a person points to an earthquake seismograph

a destoryed city with birds flying and smoke rising

A photo of dead trees silhouetted against the sunset

Chunks of melting ice in the Arctic ocean

an illustration of a base on the moon

An aerial photo of mountains rising out of Antarctica snowy and icy landscape, as seen from NASA�s Operation IceBridge research aircraft.

A tree is silhouetted against the full completed Annular Solar Eclipse on October 14, 2023 in Capitol Reef National Park, Utah.

Screen-capture of a home security camera facing a front porch during an earthquake.

Circular alignment of stones in the center of an image full of stones

Three-dimensional rendering of an HIV virus