A severe heatwave is building across Europe, with Spain and Portugal bracing for temperatures potentially reaching 45 degrees Celsius. France is expected to see temperatures of 40 degrees Celsius, while Germany could exceed 35 degrees Celsius. The intense heat is accompanied by unusually warm nights, with temperatures remaining above 20 degrees Celsius in many regions. The heat is already impacting daily life, with tourists seeking shelter and farmers in Slovakia forced to harvest crops early due to drought conditions. A concerning sign of the extreme weather’s impact is the potential death of a historic oak tree, believed to be the legendary tree associated with Robin Hood, in Sherwood Forest, which experts say has stopped producing leaves after over a millennium. Authorities are urging citizens to take precautions against heatstroke and dehydration.