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en.wikipedia.org/wiki/Ozone_depletion

Ozone depletion describes two distinct but related phenomena observed since the late 1970s: .... Scientists have been increasingly able to attribute the observed ozone depletion to the increase of ..... political factors (continued resistance from the halocarbon industry and a general change in attitude towards environmental ...

www.epa.gov/ozone-layer-protection/basic-ozone-layer-science

Dec 12, 2016 ... Most atmospheric ozone is concentrated in a layer in the stratosphere, about 9 to 18 miles (15 to 30 km) above the Earth's surface (see the ...

www.epa.gov/ozone-layer-protection/health-and-environmental-effects-ozone-layer-depletion

Dec 28, 2016 ... Environmental Effects of Ozone Depletion and Its Interactions with Climate ... the Ozone Layer: 2014 Update, Scientific Assessment of Ozone ...

www.ducksters.com/science/environment/ozone_layer.php

Kids learn about the depletion of the ozone layer. How CFCs have cause a hole in the ozone. For teachers and ... Science >> Earth Science >> Environment ...

news.nationalgeographic.com/news/2010/05/100505-science-environment-ozone-hole-25-years

May 7, 2010 ... The disturbing discovery set the stage for an environmental triumph: ... (Related: " Old Fridges, Cars Slow Ozone Hole Recovery, Scientists Say.

www.theguardian.com/environment/ozone-layer

May 23, 2017 ... Antarctic research at risk as government cuts back on science. A base which discovered the lethal hole in the ozone layer is threatened by ...

www.sciencemag.org/news/2016/06/ozone-layer-mend-thanks-chemical-ban

Jun 30, 2016 ... Since it was discovered in 1985, the Antarctic ozone hole has been a potent symbol of humankind's ability to cause unintended environmental ...

undsci.berkeley.edu/article/cfcs_checklist

The science checklist applied: CFCs and the destruction of the ozone layer ... any common chemicals, it was assumed that they were safe for the environment.

www.environment.gov.au/protection/ozone/ozone-science/ozone-layer

Scientists predict that if the international community continues to comply with the Montreal Protocol, the ozone layer should recover to pre-1980 levels between ...

www.ec.gc.ca/ozone/default.asp?lang=En&n=2ED3F6DA-1

May 25, 2010 ... Did you know? The theory about ozone depletion was first put forward in 1974 by American scientists Mario Molina and F. Sherwood Rowland.