THE MEDICAL GEOLOGY APPROACH TOWARDS STEWARDSHIP
Human existence is embedded in the Earth System along with its composition and workings. The vast array of processes and transformations among solid, aqueous and gas phases with the participation of living organisms encompassing the Earth System forms the milieu for human interaction with the system. The approach of Medical Geology involves the study of the materials and their reactions, transport, effects and fates. This requires a two-prong approach in understanding the respective components and the processes constituting the interactions between these.
Aspect One: Components of the Environment
One aspect involves understanding the components of the Earth System i.e. rocks, soils, waters and the atmosphere. This involves the solid or terrestrial Earth or geosphere/lithosphere, the aqueous layer or hydrosphere, the gaseous cover or atmosphere and the biosphere consists all of the living things on Earth as depicted in Fig. 8. The biosphere along with the other three spheres forms the ecosystem.