News tagged with ozone layer

Low temperatures enhance ozone degradation above the Arctic

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 North Pole ...

Space & Earth / Earth Sciences

created Jan 19, 2012 | popularity 5 / 5 (2) | comments 1

Could Siberian volcanism have caused the Earth's largest extinction event?

Around 250 million years ago, at the end of the Permian geologic period, there was a mass extinction so severe that it remains the most traumatic known species die-off in Earth's history. Although the cause ...

Space & Earth / Earth Sciences

created Jan 09, 2012 | popularity 4.7 / 5 (3) | comments 1 | with audio podcast

How sustainable is nuclear power for the UK?

The research into the sustainability of nuclear and other electricity options in the UK shows that nuclear power could make a significant contribution to reducing greenhouse gas emissions by 2035. However, that would require ...

Technology / Energy & Green Tech

created Dec 08, 2011 | popularity not rated yet | comments 5

Ozone depletion a bigger deal down under

The Earth's thinning ozone layer is synonymous with a singing and dancing seagull named Sid -- at least it is in New Zealand and Australia.

Space & Earth / Environment

created Oct 21, 2011 | popularity not rated yet | comments 0

Significant ozone hole remains over Antarctica

The Antarctic ozone hole, which yawns wide every Southern Hemisphere spring, reached its annual peak on September 12, stretching 10.05 million square miles, the ninth largest on record. Above the South Pole, ...

Space & Earth / Earth Sciences

created Oct 20, 2011 | popularity 5 / 5 (5) | comments 0 | with audio podcast

Jury still out on whether the Arctic ozone hole is an exception

Last winter, an unprecedented ozone hole appeared above the Arctic, five times the size of Germany. For ETH-Zurich professor Thomas Peter, the recently published study comes as no surprise. But it does raise ...

Space & Earth / Earth Sciences

created Oct 12, 2011 | popularity 5 / 5 (1) | comments 0

Astrophysics and extinctions: News about planet-threatening events

Space is a violent place. If a star explodes or black holes collide anywhere in our part of the Milky Way, they'd give off colossal blasts of lethal gamma-rays, X-rays and cosmic rays and it's perfectly reasonable to expect ...

Space & Earth / Space Exploration

created Oct 07, 2011 | popularity 4.4 / 5 (8) | comments 0

Venus has an ozone layer too: probe finds

(PhysOrg.com) -- ESA's Venus Express spacecraft has discovered an ozone layer high in the atmosphere of Venus. Comparing its properties with those of the equivalent layers on Earth and Mars will help astronomers ...

Space & Earth / Space Exploration

created Oct 06, 2011 | popularity 5 / 5 (13) | comments 0 | with audio podcast

Study finds unprecedented Arctic ozone loss

(PhysOrg.com) -- A NASA-led study has documented an unprecedented depletion of Earth's protective ozone layer above the Arctic last winter and spring caused by an unusually prolonged period of extremely low ...

Space & Earth / Earth Sciences

created Oct 02, 2011 | popularity 3.8 / 5 (18) | comments 28 | with audio podcast

FDA phases out inhaler due to environmental impact

(AP) -- Asthma patients who rely on over-the-counter inhalers will need to switch to prescription-only alternatives as part of the federal government's latest attempt to protect the Earth's atmosphere.

Medicine & Health / Medications

created Sep 22, 2011 | popularity not rated yet | comments 1

NASA bus-sized satellite to crash-land this week

What goes up must come down. But where?

Space & Earth / Space Exploration

created Sep 21, 2011 | popularity 4 / 5 (4) | comments 5

US satellite may crash back to Earth Sept 23: NASA

A 20-year-old satellite that measured the ozone layer is expected to crash back to Earth late next week, but NASA said it still does not know where it will fall.

Space & Earth / Space Exploration

created Sep 17, 2011 | popularity 5 / 5 (2) | comments 5

Whither the ozone hole?

To mark the annual International Day for the Preservation of the Ozone Layer (Ozone Day), Dr Neil Harris, an expert on the atmospheric composition from the University’s Department of Chemistry, discusses ...

Space & Earth / Earth Sciences

created Sep 16, 2011 | popularity 3.7 / 5 (6) | comments 6

Enfants terribles of the environment hit middle age

We sort our rubbish. We recycle our rainwater. We worry about depleted oceans, ravaged rainforests, threatened species.

Space & Earth / Environment

created Sep 14, 2011 | popularity not rated yet | comments 6

How the N2O greenhouse gas is decomposed

Nitrous oxide (N2O) is a harmful climate gas. Its effect as a greenhouse gas is 300 times stronger than that of carbon dioxide. Nitrous oxide destroys the ozone layer. In industrial agriculture, it is generated ...

Space & Earth / Environment

created Aug 22, 2011 | popularity 4 / 5 (2) | comments 0

Ozone layer

The ozone layer is a layer in Earth's atmosphere which contains relatively high concentrations of ozone (O3). This layer absorbs 93-99% of the sun's high frequency ultraviolet light, which is potentially damaging to life on earth. Over 91% of the ozone in Earth's atmosphere is present here. It is mainly located in the lower portion of the stratosphere from approximately 10 km to 50 km above Earth, though the thickness varies seasonally and geographically. The ozone layer was discovered in 1913 by the French physicists Charles Fabry and Henri Buisson. Its properties were explored in detail by the British meteorologist G. M. B. Dobson, who developed a simple spectrophotometer (the Dobsonmeter) that could be used to measure stratospheric ozone from the ground. Between 1928 and 1958 Dobson established a worldwide network of ozone monitoring stations which continues to operate today. The "Dobson unit", a convenient measure of the total amount of ozone in a column overhead, is named in his honor.

For more information about Ozone layer, read the full article at Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.

Related topics: ozone