If you have 10 kids swimming in a pool and one of them pees in the pool there is a rise in the pool level.
But between the liquid that they will remove from the pool and evaporation there will probably be a net loss.
This is pretty much what human caused climate change is. There are not enough of us to change the climate EVEN IF WE WANTED TO DO SO.
We simply do not have the power. Heck, we can not even make it rain with any certainty which is something we sort of know how to do.
And that is over looking the fact that not one of these people who want to "fix" the climate can tell me what they want to fix it at. What is the goal? They don't know and unless you know what your goal is you can not begin to know what you should do to try to reach that goal.
If the climate is going to change, and it does, we are far better off thinking of how we would adapt to the climate rather then trying to adjust the climate.
Adapt is something we actually can do.
I've read of some scientists wanting to seed the atmosphere with "reflectors" so that the earth would cool because there would be less sunlight to heat things up.
I'd think THAT would be immensely stupid.
And dangerous.