Climate change report shows cities working together

National governments may be dithering, but the leaders of some of the world's megacities are proving that concrete action can be taken to prevent catastrophic climate change. The C40 Cities' latest Climate Action in Megacities report stacks up exactly what has been done.

World’s mayors gather in South Africa for C40 Cities climate summit

Mayors and officials from major global cities gathered in Johannesburg this week for the fifth C40 Cities summit, to discuss ways urban leaders can tackle climate change – which former New York mayor Michael Bloomberg called "the greatest challenge of our time".

Joburg acts to beat climate change

The fifth C40 Cities Mayors Summit will take place in Johannesburg this month. It's a good time to look at the measures the city is taking to combat the effects of changing weather patterns. It is among the biggest emitters of greenhouse gases in South Africa, but it is working to rebalance this legacy.

Joburg to host 2014 C40 Mayors Summit

The city of Johannesburg has been chosen to host the fifth biennial C40 Cities Mayors Summit in 2014. The summit will bring mayors from the largest cities together with climate change leaders from around the world to advance urban solutions to combat climate change.