France: Emergency blankets used to combat heatwave temperatures

In response to increasing heatwaves, residents in Seine-et-Marne, France, are utilizing emergency blankets to mitigate indoor temperatures. For tenants in attic apartments without external blinds, covering windows with these blankets helps break the greenhouse effect caused by direct sunlight.

Users report that this low-cost, non-permanent solution can reduce indoor temperatures by up to 4°C, providing relief during intense summer heat without requiring structural renovations.