by InTrieste
Italy is facing another prolonged spell of extreme heat, with temperatures expected to remain close to 38 to 39 degrees Celsius in parts of the country as the summer’s fourth major heat wave continues.
The episode has already prompted Italy’s Health Ministry to place all 27 of the major cities it monitors under its highest heat warning — a first this year. The red, or Level 3, alert indicates a heat-wave emergency in which prolonged high temperatures pose a serious risk to public health, including for otherwise healthy people.
The warning has covered cities stretching from northern and central Italy to Sicily, including Genoa, Bologna, Florence, Rome, Naples, Palermo and Messina. Some northern areas subsequently experienced thunderstorms that brought temperatures down temporarily, but forecasts have pointed to continued hot conditions across much of the country.
The heat has already been linked to deaths and other health emergencies. Among the reported victims was a Moldovan construction worker who died on Aug. 4, his first day on a job where he was reportedly working without a formal contract. An autopsy attributed his death to heat collapse and a heart attack.
Three other people died after becoming ill while at the seaside on Sunday, according to reports: a 68-year-old woman near Salerno, an 80-year-old man at Ansedonia in Tuscany and a 61-year-old man in Liguria’s Cinque Terre.
The human toll of extreme heat is difficult to measure in real time because heat-related deaths are often recorded through estimates of excess mortality rather than as a single, immediately identifiable cause. Health researchers have warned that this summer’s unusually high temperatures could result in thousands of additional deaths in Italy, although such estimates remain projections rather than confirmed fatalities.
The consequences extend beyond human health. Northern Italy has been experiencing drought conditions in some areas, while agriculture has been affected by heat and water shortages. Reports have also documented stress on crops and livestock, as well as pressure on water supplies in parts of the north.
A Climate Signal
Scientists distinguish between individual weather events and the longer-term climate trends that influence them. A heat wave cannot be attributed to climate change simply because it occurs during a warming period. But research shows that a warmer climate makes extreme heat more likely and can increase the intensity and duration of heat waves.
NASA says observations and climate models show that record-breaking heat waves are becoming more frequent and more intense as the planet warms. The agency attributes the underlying warming primarily to the accumulation of human-produced greenhouse gases, particularly from the burning of fossil fuels.
NASA also notes that extreme heat is not an isolated phenomenon. Rising temperatures can contribute to drought, increase wildfire risk and alter rainfall patterns, creating conditions in which several forms of extreme weather can occur together.
The agency’s climate research indicates that human activities have already warmed the planet by about 1.1 degrees Celsius compared with the 1850-1900 period. As warming continues, the frequency and intensity of heat extremes are expected to increase unless greenhouse-gas emissions are substantially reduced.
Italy’s latest heat wave is therefore part of a broader pattern affecting Europe and the Mediterranean. Europe is warming faster than the global average, and recent summers have brought repeated episodes of exceptional heat across the continent.
For Italians, however, the immediate concern remains more practical: staying out of the strongest afternoon heat, keeping hydrated and limiting strenuous activity during the hottest hours.
The Health Ministry’s highest alert reflects the fact that extreme heat can affect anyone, but the elderly, people with chronic illnesses, young children and those working outdoors remain particularly vulnerable.
As temperatures rise again, Italy is confronting a summer phenomenon that is becoming increasingly familiar: not a single exceptional hot day, but repeated periods of sustained heat placing pressure on public health, water supplies, agriculture and daily life.
