Planetary engineering

Planetary engineering is when we use our technology to make changes to a planet in a way that will be beneficial for us. For example, people might use a technology to make the planet warmer so crops can grow in places that are usually too cold. Or they might use a technology to make the planet cooler so it won't overheat. We might also use a technology to make the ground more fertile so plants and animals can live there. We can even use a technology to make oceans, lakes, and rivers that don't exist now!