On 16 September, we join the global community in celebrating the International Day for the Preservation of the Ozone Layer, commemorating the signing of the Montreal Protocol in 1987. The ozone layer acts as Earth’s protective shield, filtering harmful ultraviolet (UV) radiation from the sun. Thanks to international cooperation and scientific research, the ozone hole is slowly healing, reminding us of the power of collective action in safeguarding our planet.

South Africa contributes directly to this global effort through the South African National Antarctic Programme (SANAP). At SANAE IV in Antarctica, as well as on Marion and Gough Islands, SANAP scientists conduct long-term atmospheric and environmental monitoring. This includes measuring stratospheric ozone levels, UV radiation, and atmospheric interactions—critical data that help track ozone recovery and understand climate–ozone linkages.

By providing empirical observations from the Antarctic—one of the most sensitive regions for ozone depletion—SANAP’s research supports international scientific assessments and strengthens policy decisions under the Montreal Protocol. Today, as we mark Ozone Day, we celebrate the progress made and reaffirm SANAP’s commitment to advancing research that protects both the ozone layer and future generations.