Would terraforming Mars, if possible, be ethical?
[edition.cnn.com]
I think man can survive much better in O'Neill Cylinders [en.wikipedia.org] that eventually make a Dyson Swarm [en.wikipedia.org], which can support a Kardashev Type I civilization [en.wikipedia.org].
The ethics of terraforming are moot if it isn't done. The only way to build an O'Neil Cylinder is with robots, and asteroid mining can supply the raw materials. Some could come from the moon.
I would say it’s ethical. Who would be hurt if it was terraformed?
That said, I think it would be pretty hard to trick the planet into having enough mass to hold on to an atmosphere.
@Faithless1 So a filthy tenant moving to a new place is unethical then?
I guess that depends on your ethics.
But, I think we've already started to contaminate Mars. Those rover landings undoubtedly brought earth biology in some form there.
@Faithless1
Unfortunately, yes. I doubt the sterilization process was 100% effective. And, as other countries start sending probes, the chances will increase. I'm not sure it's a bad thing though.