WASHINGTON (AP) — Rat infestation in many world cities appears to be soaring, especially in Washington, and a new study blames warming temperatures, urbanization and other human actions.

Rat infestation in many world cities appears to be soaring, especially in Washington, and a new study blames warming temperatures, urbanization and other human actions. A first-of-its-kind examination ...

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. A first-of-its-kind examination ...

FILE - A rat leaves its burrow at a park in New York City on Sept. 17, 2015. ( AP Photo/Mary Altaffer, File) WASHINGTON (AP) — Rat infestation in many world cities appears to be soaring, especially in ...

Read full article: Cooler yet sunny Sunday after the clouds clear in Houston. HOUSTON, TEXAS - MARCH 01: Jalen Green #4 of the Houston Rockets jumps for a rebound against Trey Lyles #41 of the ...

Based on individual trends within cities, Washington was by far the leader in rat increases, followed by San Francisco, Toronto, New York City and Amsterdam. NBC Universal, Inc. Rat infestation in ...

FILE - A rat leaves its burrow at a park in New York City on Sept. 17, 2015. ( AP Photo/Mary Altaffer, File) WASHINGTON (AP) — Rat infestation in many world cities appears to be soaring ...