Climate change is fueling a surge in rat populations across major US cities, with Washington, DC, seeing the worst increase over the past two decades, a new study said. The study published by ...

“Urban rat populations are booming,” the Washington Post reports ... Over the past decade, rat sightings in DC jumped by more than 300 percent, and the cause of this population explosion, ...

Rats can jump as high as 36 inches ... gutters because it keeps them out of sight and safer. Dana Hedgpeth is a Washington Post reporter, working in the early morning to report on traffic ...

Interestingly, rat populations are increasing in the 11 other cities analysed. Washington DC, San Francisco, Toronto, New York and Amsterdam are among those with the most marked increases.