Is it possible to terraform Mars at this point in history?

I am curious what YOU think. Can it be done now? If not, when do you think it might be able to be done? I know large, planetary scale, terraforming might take a long time, but what about creating city sized enclosures and terraforming in there? What other planets and moons are realistic for terraforming? I was... show more I am curious what YOU think. Can it be done now? If not, when do you think it might be able to be done? I know large, planetary scale, terraforming might take a long time, but what about creating city sized enclosures and terraforming in there? What other planets and moons are realistic for terraforming? I was thinking like Mars, possibly the poles of Mercury, Ganymede, Triton. I am just very curious what others think about this topic.
5 answers 5