Grandpa used to get by with a block of ice to cool things.
To cool things down and come back to the original question.
Nobody'd mind if he cooled things off a little.
Some radiators are used to cool things, such as a car engine.
The team is going to cool things long enough for common sense to prevail.
He sat at the kitchen table and tried to cool things down a bit.
That might cool things for now, he thought, but not for long.
The sun was setting, and a wind off the sea had cooled things a little.
I shouldn't have stayed so late, and we should probably cool things for a while.
You'll find the air from the river cools things off a bit.