India, Aug. 21 -- A systematic review in Climate warns that extreme heat is deepening urban inequality across Africa, hitting informal settlements hardest.

Drawing on 21 studies from 2010-2024, it links heat to direct illnesses like dehydration, stroke and respiratory problems, and indirect impacts such as depression, infectious disease and child mortality, driven by poor housing, overcrowding and weak infrastructure.

A new study published in the journal Climate on August 17, 2026, reveals that extreme heat poses significant health risks to residents of Africa's informal settlements, exacerbating existing inequalities.

The findings show that heat is not simply an environmental challenge but an urban inequality crisis, with disadvantage...