People swim in a public swimming pool in the French southeastern city of Grenoble on August 19, 2012. Temperatures in some parts of France will reach 40 degrees Celsius (104 degrees Fahrenheit) this weekend, triggering an alert system set up after 15,000 people died in a heatwave in 2003. AFP PHOTO / JEAN-PIERRE CLATOT (Photo credit should read JEAN-PIERRE CLATOT/AFP/GettyImages)
