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.

Rat infestation in many world cities appears to be soaring, especially in Washington, and a new study blames climate change, urbanization and other human actions.

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

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

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