It’s not often that the Mayor of Kabul visits Washington DC. So when Mohammad Younis Nawandish was invited to participate in a panel discussion on green growth as part of The World Bank’s Urban…

Rana Amirtahmasebi |

Driving through Sao Paulo yesterday, I was struck by the power of cities. While cities are part of the climate change problem, they need to be part of the solution too. They are bigger and more…

Dan Hoornweg |