In order for us to understand the process of terraforming, it is important for us to understand that Earth was not always the lush, green, life-bearing planet that it is today.
When Earth was formed it was a ball of molten rock with a thin atmosphere consisting of hydrogen and helium. These gases quickly escaped from the atmosphere because of solar wind, extreme heat and the ultra-light weight of these elements. When the gases escaped, Earth was left without an atmosphere. Howeve
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