"Penkett and his colleagues published a landmark paper in 1979, identifying how sulphur dioxide, primarily emitted from industrial sources, is converted into sulphuric acid in clouds that subsequently falls as rain."
"His measurements helped identify the role being played by chlorofluorocarbons and other ozone-depleting substances, contributing significantly to the successful implementation of the 1987 Montreal Protocol."
"The protocol was signed by all United Nations member states, the first treaty in UN history to achieve universal ratification, marking a significant milestone in international environmental agreements."
Stuart Penkett's research transformed the understanding of atmospheric pollution, particularly acid rain caused by sulphur dioxide emissions. His 1979 paper identified the conversion of sulphur dioxide into sulphuric acid in clouds, leading to environmental damage. Later, at the University of East Anglia, he studied ozone depletion, contributing to the Montreal Protocol, which successfully phased out ozone-depleting substances. Penkett's work influenced national atmospheric chemistry programs and UN assessments, marking significant progress in global environmental protection efforts.
Read at www.theguardian.com
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