The Environmental Relationships of Transportation Systems The Environmental Relationships of Transportation Systems Source: adapted and expanded from CEMT, 1990. There are a number of relationships between the atmosphere, the hydrosphere, the lithosphere, and the ecosphere, and some noted impacts. Share this:Click to share on LinkedIn (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)