France is baking, but these cave homes stay a cool 19°C (opens original article in a new tab)

Residents in Troo, France, are using historic cave homes to stay cool during a heatwave, as these naturally insulated dwellings maintain a consistent 19°C temperature.

• Residents of Troo, France, use centuries-old cave homes to stay cool during a heatwave.
• Cave homes maintain a constant temperature of 19°C due to natural insulation from tuffeau limestone.
• The village has 11 homes entirely buried in rock and additional cave rooms, with potential for more development.