This week, Johannesburg hosted mayors from the 40 largest cities (C40) in the world, discussing how to reduce the ecological footprint of cities.
The one obvious answer is, of course, to move to greener modes of transport. But exactly how viable is it to make Jo'burg a bicycle-friendly city? By NJOGU MORGAN & OLIVIER LEVEQUE.
This week Johannesburg hosted mayors from the 40 largest cities (C40) in the world. The broad agenda was lesson sharing on reducing the ecological footprint of cities. This is an urgent discussion, given growing environmental challenges such as climate change.
Climate change is widely acknowledged as a serious problem. The last report from the global panel of scientists assembled by the United Nations agreed that greenhouse gas concentrations were at their highest levels seen in the last 800,000 years.
It therefore hugely likely that extreme weather such as heat waves and extremely cold temperatures will occur more frequently and over longer durations in future.
Some impacts are locked into the system, but any actions taken now can reduce the scale and intensity of future changes - changes which are hitting the most vulnerable the hardest.
One of the actions that can be taken is to ...