Most emitted CO2 also remains in the carbon cycle.
What matters is accumulation at a particular point in the cycle because CO₂ is added to the atmosphere faster than it is removed. If it is removed faster then it ceases to be a problem.
I'm not sure what you're trying to say here.
It seems to me the first and last line don't really add anything and I don't see why the middle sentence is necessarily true.
I'm not sure what you're trying to say here. It seems to me the first and last line don't really add anything and I don't see why the middle sentence is necessarily true.