Here we are concerned with compounds of hydrogen. At hydrogen plasma does
H++e- -> n0 so if converts hydrogen of gas into neutrons. This is what we and see them as be ready giant star goes nova
On earth we are mostly concerned with molecular nuclear fusion from water. So we have the additional problem of what happens to the oxygen ions. This is quite complicated, and we need to look and see. There are two options:
He though we can do a progressive matter burn thus
18O2++2n0 -> 20O2++2no -> 212Be++E1
Or 18O+2n0 -> 16N+4n0
If an free electron passes through the shell electron we get the following
18O2++e- -> 19N-
I am sorry that this level and physics is that the limit on my knowledge. It sea is likely that a steam plasma will turn water into heat and electromagnetic radiation. Power with no carbon dioxide or toxic fission waste.
Carbon dioxide is converted into life by green plants. So for the last 200 years CO2 has been pegged at two parts per 1,000,000 –it can only ever rise in an ice-age. There never has been any increase in global carbon dioxide to affect the weather.