The damage caused by chlorofluorocarbons (CFCs) came to light in the 1980s when scientists discovered a huge hole in the ozone layer.
Since the ban on CFCs came into effect, the ozone layer has been recovering, but only very slowly. CFCs released from aerosol cans, refrigerators and air conditioning systems continue to damage layers of the stratosphere decades after their release.
Reuters - Innovations Video Online (Nov. 21, 2014) Cancer experts in Chile are warning people limit their exposure to the sun as dangerously high levels of ultraviolet radiation are expected over the next few months. A recently released report ... watch video
Newsy (July 3, 2016) A new study shows the hole in the ozone layer is shrinking, thanks in large part to the Montreal Protocol, which sought to curb harmful chemicals.
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Reuters (Oct. 23, 2013) Engineering students in Gaza have designed a prototype ozone gas generator to sterilise hospital rooms, a difficult task in a country living with economic sanctions imposed by the surrounding state ... watch video
AP (July 28, 2016) Researchers are exploring a blue hole in the waters of the Paracel Islands in the South China Sea. Data obtained by an underwater robot showed the hole is about 984 feet deep, making it the deepest ... watch video
Newsy (Sep. 11, 2014) The Ozone layer is recovering thickness! Hooray! But in helping its recovery, we may have also helped put more greenhouse gases out there. Hooray?
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Sep. 27, 2016 A new study from the active volcano K?lauea, which is on the big island of Hawaii, reports that people -- especially children -- with asthma are at greater risk of having serious asthma attacks if ... read more
Sep. 27, 2016 Nanofibers are more absorbent and better for the environment, say researchers, who note that their new material would have less of an environmental impact and be safer for ... read more
Sep. 27, 2016 Traffic noise reduces the foraging efficiency of wild owls by up to 89 percent, a team of researchers has found. The team's world-first study examined how different levels of ... read more
Sep. 26, 2016 As scientists continue finding evidence for life in the ocean more than 3 billion years ago, those ancient fossils pose a paradox that raises questions about whether there ... read more
Sep. 26, 2016 A team of scientists studying solar cells made from cadmium telluride, a promising alternative to silicon, has discovered that microscopic "fault lines" within and between ... read more
June 3, 2014 Two new chlorofluorocarbons (CFCs) and one new hydrochlorofluorocarbon (HCFC) have been found in the atmosphere by a group of scientists. Scientists made the discovery by comparing today's air ... read more
Apr. 14, 2014 Since the discovery of the Antarctic ozone hole, scientists, policymakers, and the public have wondered whether we might someday see a similarly extreme depletion of ozone over the Arctic. But a new ... read more
Mar. 9, 2014 Scientists at the University of East Anglia have identified four new human-made gases in the atmosphere -- all of which are contributing to the destruction of the ozone layer. New research reveals ... read more
Jan. 19, 2012 Extraordinarily cold temperatures in the winter of 2010/2011 caused the most massive destruction of the ozone layer above the Arctic so far: The mechanisms leading to the first ozone hole above the ... read more