Hey guys. I am currently working on the storyline to what will hopefully be a sucessful science fiction game. Here is the challenge: figure out a way to raise the average surface temperature of mars by 30 degrees farenhiet within 50 years. You are allowed any technology which you think we could have 150 years from the present.
My initial thought was using ion based propulsion to gradually change to course of comets (dozens of them) and put them into a collision course with mars. This would put a good deal of water vapour into the atmosphere, as well as release a large amount of heat.
I know that scientists believe that a large impact on earth would kick up dirt into the atmosphere and actually decrease surface temperatures.
I don't know if the same thing would happen on mars - certainly, a lot of dust would be throw up. But based on my very limited knowledge, having dust in the martian atmosphere seems to increase the amount of solar radiation the atmosphere asbords (based on the fact that atmospheric temps soar during martian dust storms).
So, would the comet idea work, and how about some other methods by which the above climate shift could be orchastrated?