Antarctic ozone hole, 2006

Antarctic ozone hole, 2006

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This image is part of the sequence Environment: satellite maps of the ozone hole over the Antarctic from 1999 to 2007

Credit: NASA/SCIENCE PHOTO LIBRARY

Caption: 2006 Antarctic ozone hole. Coloured satellite image of low atmospheric ozone levels over Antarctica on 25th September 2006. Ozone levels are colour-coded, from purple (lowest) through blue, cyan and green to yellow (highest). Ozone absorbs harmful ultraviolet (UV) radiation from the Sun, but its levels are reduced by chlorofluorocarbons (CFCs) and other compounds. CFC production was restricted in 1987 in an effort to protect the ozone layer. 2006's hole set records for extent (over 29.5 million square kilometres) and ozone depletion (to 85 Dobson units), but it is still hoped that the hole will recover fully by the middle of the century. Data from the Ozone Monitoring Instrument on the Aura satellite.

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Keywords: 2006, 21st century, 25/09/2006, antarctic, antarctica, atmosphere, atmospheric, aura, cfc, cfcs, chlorofluorocarbon, chlorofluorocarbons, circular circle circles, damage, damaged, depletion, earth, earth observation, earth science, environment, environmental, from space, largest, layer, level, levels, loss, lowest, montreal protocol, omi, ozone hole, ozone layer, ozone monitoring instrument, planet, polar, polluted, pollution, protection, protective, record-breaking, records, round shape rounded, satellite image, south pole, southern hemisphere, stratosphere, stratospheric, thinned, thinning, ultraviolet light, uv, winter

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