News tagged with ozone

Greenhouse gases to overpower ozone hole

(PhysOrg.com) -- One set of human-created gases is starting to relinquish its hold on Antarctic climate as another group of emissions produced by human activity is starting to take hold, according to a paper ...

Nov 02, 2011
4.2 / 5 (15) 14 | with audio podcast

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, ...

Oct 20, 2011
5 / 5 (6) 0 | with audio podcast

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 ...

Oct 06, 2011
5 / 5 (13) 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 ...

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

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 ...

Sep 16, 2011
3.7 / 5 (6) 6

Monitoring ground-level ozone from space

Satellite views of the Midwestern United States show that ozone levels above 50 parts per billion (ppb) along the ground could reduce soybean yields by at least 10 percent, costing more than $1 billion in lost crop production, ...

Aug 29, 2011
1 / 5 (1) 3