• International Council for Science (ICSU)
  • SCOPE - ICSU Scientific Committee on Problems of the Environnement
    Many important reports and monographs available on line.

Earth Sciences Unions

• International Union of Geodesy and Geophysics (IUGG)
• International Geographical Union (IGU)
• International Union of Geological Sciences (IUGS)
• International Union of Soil Sciences (IUSS)

IUGG Associations others than IAHS

• International Association of Geodesy (IAG)
• International Association of Geomagnetism and Aeronomy (IAGA)
• International Association of Meteorology and Atmospheric Sciences (IAMAS)
• International Association of Physical Sciences of the Ocean (IAPSO)
• International Association of Seismology and Physics of the Earth's Interior (IASPEI)
• International Association of Volcanology and Chemistry of the Earth's Interior (IAVCEI)