Pillar 4: Space and earth

4.1 Theory (17)
    • Cosmology

4.2 Space (18)
    • Astronomy
          •• Cosmological theory*
          •• Astrophysics
          •• Astrogeology
          •• Astrobiology
          •• Planetary science

4.3 Earth
   4.3.1 Surface and substance (19)
      • Physical geography
          •• Atmospheric sciences
            ••• Climatology
            ••• Meteorology
         •• Biogeography
         •• Geomorphology
         •• Hydrology
          •• Oceanography
          •• Pedology
         •• Glaciology
         •• Cartography
      • Geology
          •• Mineralogy
          •• Petrology
          ••Structural geology
          •• Volcanology
          •• Geophysics
            •••Seismology
            •••Geodesy
          •• Geochemistry
      • Soil science: pedology

   4.3.2 Interrelations (20)
      • Agriculture
         •• Horticulture
         •• Forestry
         •• Animal husbandry
         •• Aquaculture
         •• Fishery
      • Environmental sciences (ecology)
      • Natural hazards