Tuesday, November 11, 2003

Southern Ozone Hole Resurgent

After two years of a reduced ozone hole over the Antarctic largely due to statospheric turbulence, the Ozone Hole is resurgent this year almost matching its record size in 2000. Southern Hemisphere peoples, particularly children, have been warned to take care outside with increased exposure to ultraviolet (UV) radiation. Changes in UV radiation can be expected from a smaller ozone hole which forms above the arctic region. There are important connections between ozone depletion and climate change.

Ozone destruction by manufactured chlorofluorocarbons (CFCs) and bromine- containing halons has been studied since the early 1980s, which led to the Montreal Protocol in 1987 - which started phasing out use of chemicals which destroy the ozone layer. Recent evidence indicates that ozone depletion may be slowing , which is attributed to the success of the Montreal Treaty. This treaty is currently under attack by US President Bush demanding exemptions for the USA to maintain use of the ozone destroying pesticide, methyl bromide.

Melbourne IMC Feature
Green Nature
Methyl Bromide Campaign

As one of the editors of the global Indymedia site this article was Originally posted at: https://indymedia.org/pt/2003/11/109937.shtml at 11 Nov 2003 11:16 GMT