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

Climate change is fueling a surge in rat populations across major US cities, with Washington, DC, seeing the worst increase ...

Based on individual trends within cities, Washington was by far the leader in rat increases, followed by San Francisco, ...

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

Urban rat populations have surged dramatically in recent years, with some cities experiencing increases of nearly 400%, ...

One study found that by massively reducing bird numbers on some islands in the Indian Ocean’s Chagos Archipelago, rats also interrupted the flow of bird poop into the ocean, where it fertilizes ...

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 warning cities ...