Re 2: Military research gets ignored all the time despite (because?) it often outpacing academia by decades. Not sure exactly why this happens, just wanted to note this phenomenon isn't specific to CO2 levels and cognition.
Maybe, Military has strong incentive to conclude that CO2 level not affecting the soldier's intellectual and physical activities so they don't need to spend extra cost for submarine to keep the CO2 level low.
The Military has very little cost constraints. If they can show that CO2 impacts negatively the performance of troops they will get funding as needed. They are not run like corporations at all.
The 60s and 70s military may indeed have had.
You have seen the budget of the US military. You could hardly call that constrained.
I think the military has a strong incentive to not have submarine crews with impaired intellectual and physical activities so they can perform as designed.
If they had then why perform the study? They clearly wanted to optimize this cost.
If the study had shown impairment of cognitive functions during normal U-boat operations, maybe they would’ve upgraded the ships with extra scrubbers.
because they clearly wanted to optimize the performance of the crews.