In Bengaluru, India, the elevated Namma Metro runs along a key stretch in the city’s central business district. Photo: Sheep”R”Us/Flickr IT professional Nagarjun Kandukuru, 51, looks out of the window ...

Africa’s cities, from large metropolises to smaller towns, are increasingly characterized by growing urban sprawl. Kinshasa, Democratic Republic of Congo, is expanding by about 2,000 people and 5 ...

Today’s climate change headlines often seem at odds with each other. One day, it’s catastrophic wildfires wreaking havoc around the world; the next, it’s an optimistic piece on the rapid scale-up of ...