Big city mayors with serious commitments to limiting greenhouse gases did well at the polls on Tuesday.
The past decade has shown a strong connection between political protests and the looting of foreign-owned shops in South Africa. Research shows that local leaders use protests to maintain their power.
Some of the factors behind the riots by ANC supporters in Tshwane are not new. They include gripes within the governing party about its process for choosing mayors and divisions over Jacob Zuma.
The working-class son of a bus driver has been elected to one of the most important roles in UK politics.
May 2016 sees contests for the position of elected mayor in four major cities across England.