"level of action" is correct and usable in written English.
You can use it to refer to the amount of effort or action taken in a situation. For example, "We need to raise the level of action to tackle this problem."
The second level of action is the European level.
I can now take a level of action I couldn't before".
But the headlines still don't move us to action at least not to the level of action required for change.
There is a fundamental questioning – at the level of action – of what the state is or should be.
'The Bush Administration has unscrupulously taken a monkey wrench to the level of action on climate change that science demands,' said its executive director, Gerd Leipold.
As a student and later a teacher at Columbia, Zweig was surrounded by figures who seemed to raise abstraction to the level of action.
The signatories call that "a minimum level of action that would demonstrate you are serious about your intentions to support the two-degree global warming limit".
What is now undeniable is that to reach this scale of carbon reduction, at a national and global level, an unprecedented level of action is required.
Tom Cruise is playing the same level of action hero in the latest Mission: Impossible outing that he did when the franchise started in 1996.
The level of action needed to make a game pleasurable to interact with is already an obstruction to the calm that might help explore a more complex idea.
Despite the pressure from the 183,000 people who have signed The Guardian's petition, the Wellcome Trust is so far resisting the level of action many think necessary to challenge vested interests, tackle corporate power and seriously address climate change.
