Climate Change - Ozone

This page presents notes on scientific published articles related to Ozone.

Article: "Evidence for Substantial variations of Atmospheric Hydroxyl Radicals in the Past Two Decades." Atmospheric 1,1,1-trichloroethane rose steadily from 1978 to maximum in 1992, then decreased rapidly to 2000, to levels below 1978. Concentrations of hydroxyl in the atmosphere rose from 1978 to 1988 then declined to 2000. Hydroxyl (HO) is the dominant oxidizing chemical destroying most air pollutants and many gases involved in ozone depletion and the greenhouse effect. The present understanding of the capacity of the atmosphere to remove many man-made and natural trace gases is incomplete, with important implications for mitigation of air pollution and climate change. Source: Science, Volume 292, Number 5523. Date: 2001 June 8

Article: "Interpretation of Recent Southern Hemisphere Climate Change." Ozone losses and increased greenhouse gasses over Antarctica have increased the westerly flow of the circumpolar vortex. This increased flow is contributing substantially to warming over Antarctic Peninsula and Patagonia, and cooling over eastern Antarctica and Antarctic plateau. Source: Science, Volume 296, Number 5569. Date: 2002 May 3

Article: "The search for signs of recovery of the ozone layer." Total column ozone has stopped decreasing over the past eight years for most of the world. It is unknown if ozone improvement is attributable to an observed decline in ozone-depleting substances in the Earth's atmosphere. It is unlikely for ozone levels to stabilize at levels observed before 1980. Source: Nature, Volume 441, Number 7089. Date: 2006 May 4

Article: "Indirect radiative forcing of climate change through ozone effects on the land-carbon sink." Emissions due to fossil fuel and biomass burning about doubled global mean tropospheric ozone concentration. As increases in ozone concentrations negatively affect plant productivity, more CO2 accumulates in the atmosphere. Source: Nature, Volume 448, Number 7155. Date: 2007 August 16

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Last updated: 2007 Nov 24.
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