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NASA Leads Study of Unprecedented Arctic Ozone Loss

By Guest PostOctober 2, 2011Science1989 montreal protocol, alfred wegener institute for polar and marine research, amount of ozone, Antarctic, antarctic ozone hole, Arctic, arctic ozone loss, arctic polar vortex, arctic stratospheric temperatures, aura and calipso spacecraft, boulder, canada, chemical ozone destruction, chlorine monoxide, denmark, depletion of earth ozone layer, finland, Germany, gloria manney, Japan, jet propulsion laboratory in pasadena, low temperatures, NASA, new mexico institute of mining and technology in socorro, noaa earth system research laboratory, ozone hole, potsdam, russia, spain, stratosphere, stratospheric ozone layer, the netherlands, ultraviolet rays, united states, winter

PASADENA, Calif. – 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 temperatures in the stratosphere.

The study, published online Sunday, Oct. 2, in the journal Nature, finds the amount of ozone destroyed in the Arctic in 2011 was comparable to that seen in some years in the Antarctic, where an ozone “hole” has formed each spring since the mid-1980s. The stratospheric ozone layer, extending from about 10 to 20 miles (15 to 35 kilometers) above the surface, protects life on Earth from the sun’s harmful ultraviolet rays. (more…)

More Sun Safety: A Young Woman’s Battle Against Melanoma

By Guest PostJune 2, 2011Healthbattle against melanoma, cases of melanoma, skin cancer, skin care, squamous cell cancer, ultraviolet rays

Cases of melanoma, the deadliest form of skin cancer, are rising dramatically, despite the known link to outdoor or indoor exposure to ultraviolet rays. In fact, it is expected that more new cases of skin cancer will be diagnosed this year than breast, prostate, lung and colon cancer combined. (more…)

Recovering Ozone Layer

By ShamsSeptember 19, 2007Environmentcfcs, chlorofluorocarbons, eco-system, hcfcs, hydrochlorofluorocarbons, ozone layer, ultraviolet rays

After the first discovery of “Ozone Layer” over the Antarctic and more recently over Arctic, groups meeting in Montreal this week are pushing forward for a phase-out of HCFCs (hydrochlorofluorocarbons) 10 years earlier than scheduled. This will reduce cumulatively 18 to 25 billion metric tons of carbon dioxide. HCFCs are now currently used in refrigerators […]

Tag Archives: ultraviolet rays

NASA Leads Study of Unprecedented Arctic Ozone Loss

More Sun Safety: A Young Woman’s Battle Against Melanoma

Recovering Ozone Layer