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TY - JOUR AU - McKay, Christopher P. AU - Toon, Owen B. AU - Kasting, James F. PY - 1991 DA - 1991/08/01 TI - Making Mars habitable JO - Nature SP - 489 EP - 496 VL - 352 IS - 6335 AB - Mars is believed to be lifeless, but it may be possible to transform it into a planet suitable for habitation by plants, and conceivably humans. The success of such an enterprise would depend on the abundance, distribution and form of materials on the planet that could provide carbon dioxide, water and nitrogen. SN - 1476-4687 UR - https://doi.org/10.1038/352489a0 DO - 10.1038/352489a0 ID - McKay1991 ER -