Minneapolis was ranked among the cities with the cleanest air, while Seattle was praised for its investment in green spaces ...

Cities in the south of the United States, such as in North Carolina ... serve as bedroom suburbs of New York City, where high population density encourages more compact living," Mohan explained.

In early 2013, they asked people in 39 countries whether they had a favorable or unfavorable view of the United States. We rendered this data in the following map: Some highlights from the survey ...

Population growth places the United States in a radically different position ... a University of California at Irvine economist, found that density does not, as is often assumed, increase social ...

A new study has revealed the safest and most dangerous states to live in during a nuclear apocalypse, using key survival ...