A picture taken on August 4, 2022 in Les Brenets shows the dry bed of Brenets Lake (Lac des Brenets), part of the Doubs River, a natural border between eastern France and western Switzerland, as much of Europe bakes in a third heatwave since June. - The river has dried up due to a combination of factors, including geological faults that drain the river, decreased rainfall and heatwaves. (Photo by Fabrice COFFRINI / AFP)