Example sentences of "of the [noun sg] layer over " in BNC.

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1 The thinning of the ozone layer over Antarctica has been far worse than expected this year .
2 Australians will be unable to go outdoors without protection by the year 2060 , unless the depletion of the ozone layer over the southern hemisphere is halted , according to skin cancer expert Bill McCarthy , who predicted that the growing danger of cancer would render Australia uninhabitable unless its populace lived in glass-domed cities and wore spacesuit style protective gear for ventures into the open air .
3 The depletion of the ozone layer over the northern hemisphere is to be the subject of a newly-launched European Arctic Stratosphere Experiment ( EASOE ) , involving 250 scientists from 17 countries over a five month period starting in November .
4 The depletion of the ozone layer over Europe and North America is set to reach a dangerous level in the forthcoming months , according to the results of separate atmospheric surveys by Nasa and the European Stratospheric Ozone Experiment .
5 Russia and Chile have announced the launch of a joint study on the depletion of the ozone layer over the South American republic .
6 Depletion of the ozone layer over the Antarctic has started earlier and is spreading faster than last year , according to US scientists .
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