Last month was warmest october ever recorded in the world, lengthening a series of five consecutive monthly recordsThis was announced this Wednesday by the European observatory Copernicuswho predicted that this year will be the hottest in history.
These new measurements, which in practice translate into droughts and famines, devastating fires either most intense hurricanesreinforce the warnings of scientists regarding the COP28 climate summit of the UN in Dubai (November 30-December 12).
“We can affirm with almost complete certainty that 2023 will be the warmest year”said Samantha Burgess, deputy head of the Copernicus climate change service.
“The feeling that they must be taken urgently ambitious climate measures facing the COP28 “It has never been stronger,” Burgess added in a statement.
Last month, with an average of 15.38ºC on the planet’s surface, the figure exceeded the previous record from October 2019 by 0.4 ºC, according to Copernicus.
The anomaly It is “exceptional” for global temperatures, this observatory noted.
October 2023 was “1.7 ºC warmer than the average for the month of October in the period 1850-1900,” before the effects of the climate change were noted. Emissions of greenhouse gases caused by human activity, the observatory added.
And since January, the average temperature on the planet is warmest on record for the first ten months of the year, standing 1.43 ºC above the average in the period 1950-1900, Copernicus indicated.
Life “under siege”
2023 is approaching emblematic limit of +1.5 ºC established by the Paris Agreement. COP28 must provide a first official assessment of progress towards this objective and, if possible, a first correction.
The World Meteorological Organization estimated in spring that in the next five years this would be surpassed for the first time limit over the course of a year.
However, this increase of 1.5 ºC on average over several years will have to be recorded to consider that this limit has been crossed. threshold from the climatic point of view.
The IPCC panel of UN climate experts predicts that there is a 50% chance of this occurring between the years 2030-2035 taking into account the rate of Emissions of greenhouse gases.
It is currently considered that the heating It is around +1.2 ºC compared to the pre-industrial era.
The measurements of Copernicus They date back to 1940, but can be compared with the climate of other millennia established thanks to the rings of tree trunks or ice cores.
The data obtained by these methods suggest that the current temperatures are probably the warmer for more than 100,000 years.
“Life on planet Earth is in Site status”, warned at the end of October a group of scientific eminences who denounced “minimal progress” to reduce the CO2 emissions.
As was the case in 2016, currently the hottest year on record, The boy adds to the effects of climate change to make the thermometer rise. This cyclical phenomenon in the Pacific usually culminates around the Christmas.
Copernicus noted that the phenomenon is still active “although the anomalies are lower than those recorded in this period of the year” in 1997 and 2015, when El Niño was historically intense.
Last October, drought hit regions of United States and Mexico, But other areas of the planet experienced wetter than usual conditions, often linked to storms and cyclones.
The oceans contribute greatly to these records. Sea surface temperatures have broken records every month since April and in October they stood at an average of 20.79 ºC.
This increases the intensity of storms, loaded with more evaporated water, and accelerates the melting of floating platforms such as Greenland and Antarctica, crucial to preventing sea level rise.
The Antarctic sea ice remains at a record level for the season for the sixth consecutive month, 11% below the average, according to Copernicus. In the Arctic, October is the seventh month in a row, 12% below average.