Air pollution. Traffic. Animals dying. Habitat loss. All of these issues are side effects of urbanization, according to the United Nations. But, with a new rewilding solution that is being tested in ...

Although rural regions dominate the map of the contiguous United States, an overwhelming majority of Americans live in urban and suburban areas. Democrats have long dominated dense urban cores. But ...

KIAMBU, Kenya — Turn into Tatu City on the outskirts of Kenya’s capital, Nairobi, and it feels like entering a different world. Even the country’s most reckless drivers are transformed, slowing to a ...