Tag: ozone layer

Researchers at the Massachusetts Institute of Technology (MIT) predict that the global ocean could become a measurable source of ozone-depleting CFC-11 in the future. Commonly used as a refrigerant, propellant and foam blowing agent, CFC-12 was phased out in 2010 – although there has been some illegal use since. Nevertheless, atmospheric levels of CFC-11 are Continue reading Warming oceans could start emitting absorbed CFCs

MARIO Molina, a scientist highly regarded for his work on environmental problems and solutions, died on 7 October at the age of 77. Dr Molina was known by many for his work on a research paper, produced in 1974 in collaboration with US scientist Frank Sherwood Rowland, which revealed how decomposing CFCs would destroy the Continue reading Lifetime achievements of ‘ozone layer saviour’ Mario Molina celebrated

The World Meteorological Organisation (WMO) has reported that ozone layer depletion reached record levels over large parts of the Arctic in spring. Monitored ozone levels over the Arctic in March are typically at least 240 Dobson Units (DU) – with a DU representing a 0.01mm-thick layer of pure ozone at standard temperature and pressure (STP). Continue reading Extreme weather, CFC damage result in record Arctic ozone depletion

The surge in illegal CFC-11 production and use in China will, according to a recently published athe recovery of the ozone layer. The paper, titled Delay in recovery of the Antarctic ozone hole from unexpected CFC-11 emissions, suggests that the emissions could add two years to the recovery of the ozone layer – if, that Continue reading Ozone under threat from CFC-11