While summer begins with us, it is thewinterwinter which arrives in the southern hemisphere. And while our Europe is experiencing a period of heatheat intense, South America has just been swept away by a vaguevague unusual cold. All probably doing these last days, the most extreme days ever recorded in our climate history.
An extraordinary cold wave in the south
This June 30, 2025, Chile and Argentina were among the coldest regions of the planet, outside ArcticArctic et AntarcticAntarctic. In question, a anticycloneanticyclone of polar origin, powerful and persistent. Even low -altitude regions have been affected. The Chilean Meteorological Management (DMC) and the Argentinian National Meteorological Service (SMN) report that many meteorological stations have established new temperature records. Some came down under -15 ° C!
Snowfall has occurred in very unusual places. On the Atacama desert, for example, known to be one of the driest places on the planet. This June 26, 2025, the snow covered the support center for operations of the Alma Observatory in Chile, located at 2,900 meters above sea level. The last important episode of this kind dates back more than ten years.
Temperature records in the north
In thenorthern hemispherenorthern hemisphereit is the heat that has settled. The phenomenon we live in Europe is exceptional. By its magnitude, but also for the period of the year in which it occurs. These episodes of extreme heat generally occur generally at the height of summer. In question here, a high system pressionpression from Africa which creates a heat domeheat dome above us.
But Europe is not alone in having to face extreme heat. Certain parts of North America, North Africa, the Middle East and Central Asia are also affected. Records fall. Including world records. In South Korea, for example, temperatures rose to 37.8 ° C yesterday. Equal 2013 record. But it was at the time, it was in August … in Pakistan, the night temperature did not go down under 35 ° C!
Soon scientists should be able to confirm whether or not these extreme meteorological phenomena correspond to a manifestation of more global warmingglobal warming…
