Why the poorest neighbourhoods are dangerously hot

This was London's hottest summer on record, but some people felt the heat more than others. Wealthy neighbourhoods were several degrees cooler than lower-income areas — not because of the weather, but because of how the city is built. In many cities across the globe, the poorest neighbourhoods are the hottest. Wealthier areas stay cooler while low-income communities bear the brunt of extreme heat.

In this video, we explore how green spaces, housing quality, and even your job can determine how hot you get during extreme heat, and we look at what this means for vulnerable people as heatwaves become more deadly and more frequent.