Spain, Portugal, Italy, and Greece are experiencing extreme heatwaves that have reached temperatures of above 40 degrees Celsius (104 degrees Fahrenheit).
With temperatures in Lisbon predicted to surpass 42C (107F) on Sunday, two-thirds of Portugal was placed on high alert for excessive heat and the possibility of wildfires.
Temperatures in southern Spain are significantly higher than usual; Seville and other towns may expect temperatures of 42°C.
Trade unions are calling for the regulations to be expanded and implemented countrywide. On Sunday, outdoor labor was prohibited during the hottest parts of the day in a number of Italian areas, including Lazio, Tuscany, Calabria, Puglia, and Umbria.
Rome, Milan, and Naples were among the twenty-one cities out of 27 that were placed under the maximum heat alert.
