Based on individual trends within cities, Washington was by far the leader in rat increases, followed by San Francisco, Toronto, New York City and Amsterdam.

The cleanliness updates were included in the mayor’s preliminary management report, which was released Thursday and provides ...

We are on our heels and being pushed backward,” Jonathan Richardson, the study’s lead author and an ecologist at the ...

There’s a saying that in a big city you are never more than six feet away from a rat. It’s an urban myth but scientists are ...

Simmering urban temperatures are bad for humans. It's another story for rats, according to new research -- especially in ...

A national survey of 1,140 miles of urban and rural sites in England found more than nine out of ten contained litter, while ...

Keep Britain Tidy surveyed hundreds of miles of rural and urban sites to gain insight into the level and type of litter found ...

The groups that clean up the city’s commercial corridors say they already do the Sanitation Department’s job for them and ...

Dead bodies litter the streets of eastern Congo’s Goma city after heavy explosions and gunfire were heard amid intensifying battles between Rwanda-backed rebels and pro-government forces.

The workers picking up street litter for Ground Score, a Portland nonprofit created by and for people with a history of homelessness, have found some wild stuff. One woman found a toy chameleon, which ...

The Belgian capital could hardly make a worst first impression, but look beyond the litter, graffiti and high-rises and ...