Chemical Cause of Antarctic Ozone Hole Discovered 20 Years Ago This Month

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Twenty years ago a team of scientists university and government scientists learned the cause of the hole (dark) in the ozone layer over Antarctica to be human production of the chemical chloroflurocarbons or CFCs. The continent is visibile through th ...
Twenty years ago, a team of scientists university and government scientists learned the cause of the hole (dark) in the ozone layer over Antarctica to be human production of the chemical chloroflurocarbons, or CFCs. The continent is visibile through the hole. Credit: NASA

Twenty years ago this month, government and university scientists ventured to Antarctica to study the cause of a hole in the stratospheric ozone layer over the southernmost continent. Those observations were the first definitive demonstration that humans are capable of affecting the entire global climate system and led to the Montreal Protocol, the first treaty to address the Earth's environment.


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All News summaries for August 22, 2006

Using neutron-computed tomography techniques, scientist measure in-situ water content

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Scientists at the University of California in Davis present results from a newly developed non-invasive technique that uses thermal neutron attenuation to measure spatial and temporal distribution of water in soils. The study, ...

Mind the gap: VLT instrument hints at the presence of planets in young gas discs

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Astronomers have been able to study planet-forming discs around young Sun-like stars in unsurpassed detail, clearly revealing the motion and distribution of the gas in the inner parts of the disc. This result, ...

Steins: A diamond in the sky

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(PhysOrg.com) -- The first images from Rosetta's OSIRIS imaging system and VIRTIS infrared spectrometer were derived from raw data this morning and have delivered spectacular results.

Launch of GOCE Satellite delayed

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(PhysOrg.com) -- The preparatory activities for the launch of ESA's GOCE satellite from the Plesetsk cosmodrome in northern Russia had to be stopped yesterday afternoon (Sunday 7 September) by Eurockot due ...

Tracking down the menace in Mexico City smog

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A new report by scientists who are part of the international MILAGRO Campaign indicates that some of the most harmful air pollution in Mexico City may not come from motor vehicles but instead originates with ...
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