Terraforming of Mars

These sound more and more like the speculations of science fiction, and matters become only more speculative as people contemplate the efficacy and feasibility of expensive, dangerous, and longer-term effects of colonization and terraforming of Mars by humans. 

Fogg, M. J. (1989). The creation of an artificial dense Martian atmosphere A major obstacle to the terraforming of Mars. Journal of the British Interplanetary Society, 42, 577. 

Graham, J. M. (2004). The biological terraforming of Mars Planetary ecosynthesis as ecological succession on a global scale. Astrobiology, 4, 168. 

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