Increase in ozone-destroying substances—but Montreal Protocol on track
Research from the University of Leeds and an international team of scientists has shown a recent increase in atmospheric hydrogen chloride (HCI), a substance linked to destruction of the ozone layer.
2014 Antarctic ozone hole holds steady
The Antarctic ozone hole reached its annual peak size on Sept. 11, according to scientists from NASA and the National Oceanic and Atmospheric Administration (NOAA). The size of this year's hole was 24.1 million ...
Arctic marine organisms capture CO2
Arctic marine organisms act as a reservoir for CO2, according to research published in the international journal Geophysical Research Letters.
Fracking's environmental impacts scrutinised
(Phys.org) —Greenhouse gas emissions from the production and use of shale gas would be comparable to conventional natural gas, but the controversial energy source actually faired better than renewables on some environmental ...
The ozone hole has stabilized—some questions remain
The production and consumption of chemical substances threatening the ozone layer has been regulated since 1987 in the Montreal Protocol. Eight international expert reports have since been published, which ...
Greenhouse gases: A new group of soil micro-organisms can contribute to their elimination
INRA research scientists in Dijon have shown that the ability of soils to eliminate N2O can mainly be explained by the diversity and abundance of a new group of micro-organisms that are capable of transforming it into atmospheric ...
Mysterious source of ozone-depleting chemical baffles NASA
A chemical used in dry cleaning and fire extinguishers may have been phased out in recent years but NASA said Wednesday that carbon tetrachloride (CCl4) is still being spewed into the atmosphere from an unknown ...
Polar zone ozone and UV exposure, under closer scrutiny than ever
Global changes, such as climate warming and stratospheric ozone depletion, are increasingly noticeable. Therefore, there is a need for scientists to have reliable information about atmospheric and stratospheric processes. ...
Count of new chlorofluorocarbons in the atmosphere rises from four to seven
Scientists at the University of East Anglia have found two new chlorofluorocarbons (CFCs) and one new hydrochlorofluorocarbon (HCFC) in the atmosphere.
Research will gauge hypothetical disaster: A supernova close to Earth
Seen from our planet, the flash could be brighter than a multitude of suns—and might be followed by a ruined ozone layer, an upsurge in radiation, and a wave of cancers and mutations in humans and other creatures that would ...
Researchers find that the extremes in Antarctic ozone holes have not been matched in the Arctic
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.
Little-studied man-made gases have big warming potential
(Phys.org) —The total warming impact of 25 major synthetic greenhouse gases has been examined by an international team, led by researchers from the University of Bristol.
How wind helps Antarctic sea ice grow, even as the Arctic melts
Strong winds linked to climate change and the hole in the ozone layer are driving a steady increase in Antarctic sea ice, even as Arctic levels continue to shrink dramatically, a new report shows.
Study reveals four new man-made gases in the atmosphere
Scientists at the University of East Anglia have identified four new man-made gases in the atmosphere – all of which are contributing to the destruction of the ozone layer.