A new study suggests that exposure to green spaces in urban areas has positive benefits for mental health.

The invasive Joro spider has a secret weapon: it tolerates city living much better than most native spiders.

With more and more people living in cities, new research digs into growth's effect on trash, wastewater, and greenhouse gas emissions.

Fruits and veggies from urban farms and gardens have a carbon footprint that is, on average, six times greater than conventionally grown produce.

"Loss of our urban green and blue spaces due to rapid urbanization may not just have an environmental impact but could have a public health impact as well."

Major cities on the US Atlantic coast are sinking, in some cases as much as 5 millimeters per year, a new study shows.

A malaria-carrying mosquito, Anopheles stephensi, is moving into African cities, where a construction boom appears to welcome them in.

A recent study finds strong links between residential segregation and disparities in early death rates from common causes.

Urban counties in North Carolina have higher overall incidences of breast cancer than rural counties, researchers find.

A population of endangered red-crowned parrots is thriving in urban areas of South Texas, research finds.