Cnr: “Until now, 2022 is the hottest year ever. Precipitation halved ”. Extreme weather phenomena in autumn

The first seven months of the 2022 they have been the hottest ever, that is, since 1800, when surveys on a national level began. At least until now. The data published each month by the Institute of Atmospheric Sciences and Climate of the National Research Council (Cnr) are striking. According to the Institute, in fact, 2022 would have recorded the record of drought with a real halving of rainfall recorded from the beginning of the year to the end. July compared to the average accumulations over the thirty-year period 1991-2020. The biggest reduction, -52%, hit the Northon the other hand, to a slightly lesser extent, the Center South with -42%.

Still at this time, the year more drier of Italian history is the 2017, but 2022 has a good chance of breaking a new record. Suffice it to say that the total amount of accumulated rains are much lower than those of five years ago. In general, in 2022 there was about the half the rains recorded on average in Italy in the last 30 years and the phenomenon accentuated at North.

As for the temperatures, however, the months of May, June and July, all three are in second place in the ranking of the hottest ever. A warmer May than this year occurred only in 2003the same goes for the month of June, while the hottest July ever dates back to 2015. And considering the period from May to July, this year is also hotter than 2003.

“The fluctuations from one year to the next are part of the internal variability of the system – said Michele Brunetti researcher at the Institute of Atmospheric and Climate Sciences of the Cnr of Bologna -, but underneath there is a long-term signal of constant increase in temperature. Suffice it to say that in Italy, from the 1980s to today, the temperature has risen on average by 0.45 degrees every ten years. Obviously, if compared to 40-50 years ago we have two degrees more, also the oscillations of the system start from a base two degrees higher and move towards higher values ​​”.

There Coldiretti raises the alarm that mainly concerns the harvest which has just started in Italy with a prospect of a decline in 10% of grapes. But the other crops aren’t faring better either. “It is alarm in the olive groves with the heat that risks collapsing production yields. In addition to the plains, the effects of climate change are also felt in the mountains with a profound change in the landscape with pastures that are increasingly drier and pools to water the animals dry due to the lack of rain “, said Coldiretti who talk about a impact devastating from drought and high temperatures with damage toagriculture that exceed the 6 billion eurosequal to 10% of production national. The lack of water, concludes Coldiretti, “undermines a fundamental system for agriculture and farming in the mountains, putting typical products at risk, from cheeses to cured meats”. And after a scorching summer almost completely devoid of rainfall, according to forecasts, there will be a Autumn characterized by atmospheric events of exceptional intensity.

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