Planetary Engineering

can be allocated through the. By default it is used for which gives boosts to  growth. It can also by used for to increase the  of planet improving both  and  and for  in change the  to something more habitable.

Habitat Control
simply provides a bonus to. It is the default allocation when neither nor  are selected. It is particularly useful for new colonies as way to quickly gain enough gain multiplier to.

Eco-Engineering
raises the of a planet providing bonuses to  and.

Each level requires the appropriate technology from the Planet Engineering tech category: for level 1,  for level 2, and the proper Uplift technology for the  for level 3.

When a planet's can be raised, click on the  icon on the  to initiate the project.

Terraforming
changes the to one more suitable for your Empire's, negating the penalties for  or  biomes.

The tech allows altering between two types within a biome class; combined with the  tech and enough, any biome can ultimately be transformed to any other.