You are a tinker specializing in environmental technology with dual approaches to that specialty. One approach focuses on surviving hostile environments in various ways from specialized genemods, cybernetics, armor/clothing, vehicles, or shelters. The other focuses on changing the environment to suit your needs like purifying water on a large scale, changing the composition of the gasses in the air, manipulating the materials composing the ground, dealing with radiation, dealing with heat or a lack of heat, and changing the weather. These approaches are not incompatible if you work at it you might be able to make cybernetics or armor that can shoot bolts of electricity or manipulate the environment in various ways. While this specialty is very versatile it does not surpass specialties like thermal or cybernetics in their field it merely offers a specialized approach. Has great synergy with specialties related to either of it’s approaches.