I'm confused. Terraforming is 1000+ years away, if we are ever even able to do it at all. I'm unclear of what you mean by 'small levels' because either you are terraforming, or you aren't. You have to create an atmosphere, you need to create a planets worth or water, you need to inject a crap ton of CO2 into the atmosphere to create the material plants will use as building blocks, to create the O2. All of this is millennia away. We've been non stop injecting CO2 into the atmosphere since the beginning of the industrial era, and that (while a bit of an issue today), isn't nearly enough carbon to begin to terraform a planet.
But for genetically modifying stuff, we're doing really well on that track. Most of the tech needed for designer babies is here. The issues with it aren't the tech existing, but our willingness to create massive numbers of defective offspring before we get a viable glow in the dark human. It's not the tech that's lacking, only our appetite for failed runs and a severe distaste for side-effects. But that's proven to work, CRISPR has already proven to be able to make glow in the dark pigs, so it's a matter of refinement. We don't have the slightest clue about terraforming. Just ideas at this point.
But for genetically modifying stuff, we're doing really well on that track. Most of the tech needed for designer babies is here. The issues with it aren't the tech existing, but our willingness to create massive numbers of defective offspring before we get a viable glow in the dark human. It's not the tech that's lacking, only our appetite for failed runs and a severe distaste for side-effects. But that's proven to work, CRISPR has already proven to be able to make glow in the dark pigs, so it's a matter of refinement. We don't have the slightest clue about terraforming. Just ideas at this point.