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Temperature control
Change the amount of greenhouse gases in the atmosphere to make the planet warmer or colder. The temperature is not only about the distance from the Sun, but also about the air around the planet.
climate
climate
getting water
Water is very important for life. If a planet has no water or it is in the poles, we can bring ice from comets or asteroids.
Life's Liquid
climate

Some people suggest using nuclear bombs to make dust clouds in the air. This would make the ice melt and warm the planet. It can also help to release water or oxygen from rocks.
Dust and
Heat
climate

nuclear bombing
Life
builders
climate

Biological terraforming
Use special bacteria or tiny plants that can live in hard conditions. They can make oxygen, COâ‚‚, and other gases to change the planet’s air.
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