Everything Makes Sense If You Center Megacities As The Focus Of Global Governance

technologyreview |  In 2050, 2.5 billion more people will live in cities than do today. As the world grows more urbanized, many cities are becoming more populous while also trying to reduce carbon emissions and blunt the impacts of climate change.

In the coming decades, cities will be engines of economic growth. But they must also play a key role in confronting climate change; the world’s 100 most populous cities are responsible for roughly one-fifth of global carbon emissions. 

Some of the world’s biggest cities—called megacities—are rising to this challenge. However, these urban areas vary greatly in how efficient they are and how much they will grow. Seeing how they stack up can help us identify where our greatest opportunities are to reduce emissions.