"to mitigate the problem" is a perfectly correct and usable phrase in written English.
You could use it in a sentence like this: "We need to take measures to mitigate the problem of climate change."
Trump is doing nothing to mitigate the problem.
My AER paper explores possible solutions to mitigate the problem.
"So it's better to realize that very early and try to mitigate the problem".
Eventually the company caved and offered free smartphone cases to mitigate the problem.
Consequently, automakers are taking steps to mitigate the problem, affecting how drivers interact with the systems.
Medicare Advantage was supposed to mitigate the problem by harnessing the discipline of the private sector.
Did Disney do enough to mitigate the problem or warn tourists about potential dangers?
A bias algorithm was implemented in Cycle 6 to mitigate the problem.
Trying to mitigate the problem with tariffs will be far less effective, and will impose a lot of collateral damage.
Ellman said: "This is not a substitute [for local bus services] but it would help to mitigate the problem".
In June Indonesia's two largest Islamic organisations pledged to try to mitigate the problem by running sermons about environmental awareness.
