The sun

The fact that the sun is at the center of all life is nothing new but it's never been truer than in 2116 Lagos:

Humanity depends on the sun to power its dome and all life that comes with it. The inama depend on the sun's energy for sustenance. The sun's energy is literally a matter of survival. Humanity desperately needs to expand its dome in order to combat the extreme overpopulation that plagues it and all the troubles that come with it. However, as every inch of the dome's expansion exponentially erodes all lands around it by absorbing the sunlight, the inama fight humanity for, literally, every inch. Every bit of expansion will literally cause death to the inama and their lands.

So to say that the sun is at the center of all life, is a literal statement in the world of Red Soil.

Solar energy is very precious to humanity, as it is far from abundant. The mere upholding of the dome requires a lot of energy and infrastructure consumes most of what is left. Less than desired can be dedicated to war efforts: Expanding the arsenal of weaponry, AI, bionic enhancements, exo suits & mechas. FInding the right balance between upholding civilized living conditions, ensuring the protection of the dome and gaining an edge in the war efforts by upping the production of weapons is a constant struggle and an important political matter that is frequently the main topic of parliamentary discussions.