Baltimore, like many post-industrial cities, confronts novel challenges. Once the sixth largest city in the U.S., Baltimore’s population has contracted by more than a third, resulting from a complex suite of factors including job loss, economic decline, and discriminatory policies or housing and lending practices. It’s ...

Imagine Lagos, Nigeria, a city of 22 million. What was once a small coastal town just a few decades ago has exploded into a sprawling megacity spanning 452 square miles. Its rapid growth has stretched the city’s services impossibly thin: ...

Sustainable economic development in sub-Saharan Africa will only be possible if towns and cities across the region thrive. This column highlights the critical role that national governments need to play in guiding the urban transition. National Urban Policies can help ...

Amid the barrage of news about climate-related natural disasters and climate change summits, it’s important to recognize real inflection points—when there is truly cause to sit up and take note. The IPCC Special Report on Global Warming of 1.5ºC, released ...

About 3 billion people, or 40 percent of the world’s population, will need new housing by 2030. That will require constructing approximately 21 million new homes every year across the world. Several of the fastest-growing countries have ambitious goals to ...

Every other Sunday, thousands of people spill onto otherwise auto-clogged city streets across India. For a few hours, the roadways are theirs – to walk, cycle, skate, practice yoga, CrossFit, even Zumba. Open streets days, known locally as Raahgiri Days, ...