The HiPPO fly-past measures CO₂ from Wollongong as part of a global mission

The ‘HiPPO’ (HIAPER Pole-to-Pole Observations) Field Project, considered the most extensive airborne global sampling of carbon dioxide and other trace gases in the atmosphere to date (from the Arctic to the Antarctic), will incorporate Wollongong in its latest and future missions.
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The aircraft overpass was captured on amateur video by Nicholas Jones, a senior researcher within the Centre for Atmospheric Chemistry.