A new study finds that rat infestation in many of the world’s cities appears to be soaring, especially in Washington.

The researchers analyzed rat complaints and inspection reports for 16 cities that had consistent, long-term data available. More than two-thirds of those cities saw a significant increase in rat ...

Global warming is helping rats thrive in major cities around the world, with Washington DC seeing the fastest growth in rats ...

Climate change, especially warming winters, is linked to rising rat populations in cities, according to a new study. It found “significant” increases in rat numbers in places including Washington D.C.

Global warming is worsening droughts, making sea levels rise, and fueling deadly storms. Now scientists have a new problem to add to that list: Climate change is helping rat populations thrive in U.S.

In the first study of its kind, scientists found a correlation between climate change and a rise in urban rat populations.

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 ...

A new study of cities across the globe has found a link between climate change and larger increases in the urban rat ...

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

Winters are getting warmer and shorter as the climate changes. That's helping rat populations grow in several U.S. cities.

Well, rats. A study of 16 cities shows that higher ambient temperatures and loss of green space are associated with increasing rodent complaints.