You're not using "science" to predict the future. You're just expressing a pessimistic belief that we're doomed based your own idea of how things will play out.
To me, optimism seems far more justified based on our track record, we've more-or-less solved some big problems:
- "Population growth is going to cause worldwide famine"
- "We are going to run out of oil and civilization will collapse"
- "The ozone hole is going to expose everyone to dangerous radiation"
- "Acid rain is going to destroy forests and kill lakes"
- "City air pollution is going to make major cities unlivable"
- and smallpox/polio/HIV/leaded gasoline/etc
Climate change is not solvable. There is no solution. The only thing I know of that we might be able to do is spray enormous amounts of aerosols into the atmosphere hoping to block the sunlight. This might backfire spectacularly, also might not even work. It's a hail Mary we'll probably try when things get bad enough.
That's it. That's the only idea we have that might help. Maybe there's others I don't know about, but they're not good or we would be doing them already. Carbon capture is a joke, it will never make a difference. We would need a million carbon capture plants, we can't build a million capture plants.
Even if we completely stopped emitting CO2 today we would be completely fucked, and we're not doing that we are in fact producing more CO2 every year. That will probably change eventually but it's already too late.
Obviously nobody can know for sure, maybe we will get lucky and someone will come up with a genius plan that actually works. But that's far from guaranteed, as far as we know right now it's impossible so just assuming that's going to change is extremely naive. It's a thin sliver of hope it's not what we should be expecting nor relying on.
We have no good solution, and given the scale of the problem we have almost no hope of finding one. Do you understand how much atmosphere there is? We've been burning fossil fuels as fast as we can for centuries, now we are finally seeing the result of that and it's so slow that lots of people still don't believe it's happening. It's way harder to reverse.
Also, ice. Ice is important. Ice reflects sunlight and essentially stores cold. Less ice means more heat. More heat means less ice. Do you understand how long it's taken to build the amount of ice on the planet? Absolutely no amount of terraforming will rebuild the ice we're losing and have lost, not in thousands of years.