Ow many cities in the United States have joined the Global Covenant of Mayors for Climate & Energy2/20/2024 ![]() ![]() The study, which has not yet been peer-reviewed, considered the heatwave that struck in southern Europe between 12 and 18 July and indicates that without anthropogenic greenhouses gas emissions it would have been at least 1,000 times less likely. Some of them have been doing so for several years, some others need to catch up,” she concludes.Ī similar message comes from a preliminary study just published by the World Weather Attribution group of scientists. “The evidence is strong, cities need to plan accordingly. “While rainfall projections are affected by larger uncertainties, climate models are much more accurate about temperatures,”, Mercogliano explains. The number of nights with temperature above 20☌, so-called tropical nights, have increased too. “Thirty years is the minimum time window to distinguish between normal climate variability and climate change,” she explains. The results of this work contributed to a report published by CMCC about climate risk in the six Italian cities.Īccording to that report, each of the last nine years was the hottest year observed since 1990 in all the cities. ![]() In 2021 a group led by Paola Mercogliano, climatologist at the Euro-Mediterranean Center on Climate Change (CMCC) reconstructed the evolution of the climate on a 2-kilometre grid during the last 30 years in Bologna, Milan, Naples, Rome, Turin, and Venice. Last year in Rome the number of heatwave days was 11, around twice what was recorded in 2003, an especially hot year. Heatwaves are already longer and more frequent than a few decades ago. ![]() Milan will see a similar trend, with 30 heatwave days if climate mitigation policies are adopted and 60 if not. According to an analysis published in 2019 by the European Union’s Copernicus Climate Change Service, Rome could have 28 heatwave days on average in 2080 if greenhouse emissions peak around mid-century, and 54 if they continue to grow, doubling by the end of the century. The summer of 2023 has surpassed many temperature records in Italy, but by the end of the century it may be remembered as a mild one. ![]() Credit: Andrea Ronchini/NurPhoto via Getty Images When the heat in Rome soars, the fountains provide a welcome respite. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |