Heatwaves in Africa are becoming hotter, longer, and more frequent, according to new research led by the University of Illinois at Chicago (UIC). The study links the rise in extreme heat mainly to greenhouse gas emissions and black carbon pollution from fossil fuels.
Heat Waves Tripled in Intensity Over Four Decades
The researchers compared heat trends between 1950–1979 and 1985–2014. They found that while earlier decades saw fewer and weaker heatwaves, recent decades have witnessed extreme heat events occurring every two years and lasting three times longer.
“In a developing continent like Africa, where adaptive infrastructure is limited, heat waves can have devastating consequences,” said Dr. Akintomide Afolayan Akinsanola, head of the Climate Research Lab at UIC.
Record-Breaking Temperatures in West Africa
In April 2024, the West African city of Kayes in Mali recorded scorching temperatures above 48°C (119°F). Such extreme heat strains weak power grids, reduces crop yields, and threatens vulnerable populations, especially infants, the elderly, and people with chronic illnesses.
The Wider Impact: Food, Energy, and Migration
“Heat waves affect productivity, food security, and energy systems. With Africa’s population nearing 2 billion, they can trigger drought, migration, and conflict,” Dr. Akinsanola warned.
The study also highlights the lack of early-warning systems, reliable meteorological data, and cooling infrastructure in many African countries, leaving millions exposed to deadly temperatures.
Why This Matters Globally
Extreme heat in Africa does not just remain a local issue. The cascading effects—food shortages, displacement, and regional instability can impact global markets and international security.
