When the plant dies, the fixednitrogen is released, making it available to other plants and this helps to fertilize the soil.

Another concern is the fact that sugarcane fields are traditionally burned just before harvest to avoid harm to the workers, by removing the sharp leaves and killing snakes and other harmful animals, and also to fertilize the fields with ash.

Other methods of geoengineering that is, consciously manipulating the climate include painting the roofs of houses white in order to increase the reflection of sunlight, covering deserts with reflective plastic, and fertilizing the seas with iron in order to increase the absorption of CO2.