WASHINGTON (DC News Now) — A new study linked increased rat numbers to climate change and urban heat islands. D.C. measures the rat population by the number of complaints it gets to 311.

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, with the District of Columbia leading the way, as it does in so many areas of modern life. San Francisco and New York are far behind.

A wildlife rescue center in D.C. has found that an increasing number of birds and mammals across the city are consuming, falling ill and dying from rat poison. Rodenticide, which contains ...

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.