The Tree House Humane Society has placed two- to three-cat teams outside of Chicago homes and businesses as a way to keep the rodent population under control and the city healthy, calling it a “green” solution to the problem of the fins.

In the city of the United States, Chicago, more than 1,000 well-equipped warriors have been deployed in the fight against rats: wild cats.

Through its Cats at Work program, the Tree House Humane Society has placed teams of two to three cats outside of homes and businesses as a way to keep the rodent population under control and the city healthy, and considers it a solution. “green” for the soul problem.

It seems to work: so far, the organization said it has placed more than 1,000 wild cats and that “there is currently a long waiting list” that extends over several months for more feline help.

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