The Copernicus Climate Change Service has confirmed this Tuesday that this month of July has been, by far, the hottest ever recorded on the planet. In addition, it has affected other climatic anomalies in the oceans, sea ice or hydrogeological variables. “We have just witnessed that global air temperatures and global ocean surface temperatures have set new all-time records in July,” said Samantha Burgess, deputy director of the European Observing Program Climate Service, who warned: “These Records have dire consequences for both people and the planet exposed to increasingly frequent and intense extreme events.
On the other hand, Copernicus has also affected another record that is not being talked about as much: in terms of the average global temperature of the planet, the month of July was 1.5 °C warmer than the average of 1850 -1900, that is, one of the most symbolic figures of the Paris Agreement has been temporarily reached, one of the climate objectives that it is sought not to exceed at the end of the century. This security limit of the international treaty must be calculated by means of an average of several years and not from a single month. However, this is undoubtedly a wake-up call.
“2023 is currently the third warmest year to date at 0.43°C above the recent average, with an average global temperature in July of 1.5°C above pre-industrial levels,” Burgess stressed. “Even if this is only temporary, it shows the urgency of ambitious efforts to reduce global greenhouse gas emissions, which are the main driver behind these records.” These emissions are mainly caused by the burning of fossil fuels, that is, the use of oil, coal and natural gas.
sea surface temperature record
In addition to the global surface air temperature, the record for the global temperature of the ocean surface was also broken in July, which had already risen unusually since April of this year. According to Copernicus, the average temperature of the sea surface has been half a degree above the records held between 1991 and 2020.
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However, in the North Atlantic it has been 1.05 °C above average and there have been unusually high records in the Northwest Atlantic. In addition, marine heat waves have occurred south of Greenland and in the Labrador Sea, in the Caribbean Basin, and throughout the Mediterranean Sea. El Niño conditions continued to develop over the equatorial eastern Pacific.
sea ice loss
With the high temperatures suffered by the oceans, the extent of Antarctic sea ice has also been reduced. A new record has been set for the South Pole in July, which has lost 15% of its average monthly value. The only area that has persisted above average has been the Amundsen Sea.
On the other hand, the Arctic sea ice extent was slightly below average, with the area holding up the best being the northern coast of Siberia. Although the numbers for the North Pole are negative, they are well above the record for July 2020, a year in which almost half its size melted.
Hydrological variables
Regarding the hydrogeological values, according to the Copernicus Climate Change Service, the month of July has been wetter than average in most of northern Europe and drier than average in the entire Mediterranean basin. , with the largest anomalies occurring in Italy and the southeast of the continent. Beyond Europe, July was wetter than usual in northeastern North America, Afghanistan, Pakistan, northeast China, northern and eastern Australia, and Chile. While Mexico and the southwestern United States, central and southeast Asia, southwestern Australia, and parts of southern Brazil and Paraguay were drier than average.
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