urban heat island effect

      By Duane Jethro, University of Cape Town   One of my favourite statues is the one of Nelson Mandela at the Sandton City shopping centre in Johannesburg. Larger than life, its oversized bronze shoes shimmer in the evening light, polished by the hands of many passersby who crowd around to take pictures with it. At the entrance of a square in the mall, it’s a jovial image […]

    By Meelan Thondoo, University of Cambridge   Cities cover just 3% of the planet. But they emit 78% of all global greenhouse gas emissions, absorb 80% of final global energy (what consumers use) and consume 60% of clean drinking water. African megacities like Lagos, Nigeria (with 21 million residents) and Cairo, Egypt (with 10 million residents) are experiencing significant temperature increases due to the urban heat island effect […]