- Ozone Hole Watch : latest status of the ozone hole over the South Pole
NASA – Goddard Space Flight Center
- Ozone Hole Facts : facts about the ozone hole
NASA – Goddard Space Flight Center
- Ozone Hole Tour : an educational resource
Centre for Atmospheric Sciences
- Ozone Layer Observations
World Meteorological Organization
- Ozone Secretariat
United Nations Environment Programme
- WMO/GAW
World Meteorological Organization – Global Atmosphere Watch
- NDACC
NOAA – Network for the Detection of Atmospheric Composition Change
- IGACO – Ozone and UV Radiation
Finnish Meteorological Institute
- SPARC – Stratospheric Processes And their Role in Climate
- Montreal Protocol Who’s Who : new web portal intended to honor the visionaries, innovators and implementers who are making the Montreal Protocol a global environmental success story
- EC
The European Commission
- IAMAS
The International Association of Meteorology and Atmospheric Sciences, parent organization of the IO3C
- SHADOZ
The Southern Hemisphere ADditional OZonesondes project collects and distributes coordinated ozonesonde launches in the tropics.