The Arctic Ozone layer has this year, for the first time, suffered loss so severe that an ozone hole akin to that famously present over the Antarctic has now become an atmospheric feature, some thirteen miles above the ground where it appears that four fifths of atmospheric ozone has disappeared.
The Arctic Ozone layer has this year, for the first time, suffered loss so severe that an ozone hole akin to that famously present over the Antarctic has now become an atmospheric feature, some thirteen miles above the ground where it appears that four fifths of atmospheric ozone has disappeared.
Caused, it is believed, by an unusually long spell of high-altitude cold weather, when chlorine chemicals which cause ozone destruction become most active, there seems no way of predicting if such losses will occur again.
Arctic stratospheric winter seasons are extremely variable, over the last few decades appearing to get colder, leading to further very cold years in which chlorine levels are likely to be high enough to lead to have severe ozone loss, the destructive chemicals originating in, for example chlorofluorocarbons – CFCs – still present in the atmosphere. Read more at http://scienceray.com/biology/ecology/arctic-ozone-layer-loss/
The Arctic Ozone layer has this year, for the first time, suffered loss so severe that an ozone hole akin to that famously present over the Antarctic has now become an atmospheric feature, some thirteen miles above the ground where it appears that four fifths of atmospheric ozone has disappeared.
Caused, it is believed, by an unusually long spell of high-altitude cold weather, when chlorine chemicals which cause ozone destruction become most active, there seems no way of predicting if such losses will occur again.
Arctic stratospheric winter seasons are extremely variable, over the last few decades appearing to get colder, leading to further very cold years in which chlorine levels are likely to be high enough to lead to have severe ozone loss, the destructive chemicals originating in, for example chlorofluorocarbons – CFCs – still present in the atmosphere. Read more at http://scienceray.com/biology/ecology/arctic-ozone-layer-loss/
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