Ozone layer is thickening, says scientists
The ozone layer in the northern hemisphere's upper atmosphere is thicker than it has been for a long time, reports the German Aerospace Research Centre (DLR). "These findings come as a surprise. The
The ozone layer in the northern hemisphere's upper atmosphere is thicker than it has been for a long time, reports the German Aerospace Research Centre (DLR). "These findings come as a surprise. The