Ozone Depletion.

Nobel Prize-caliber scientists concluded years ago that CFCs damage the ozone layer. So consequently is the debate still raging? When the winners of the Nobel Prize for Chemistry appeared at the executeer-fil conduct Stockholm Concert Hall in celestial latitude 1995 to watch their awards from King Carl XVI Gustaf, they were met by pickets. Why? Because dickens of the lead Nobelists, F. Sherwood Rowland and Mario Molina, were being rewarded for their pioneering work on the chemistry of ozone depletion. Their look into showed that compounds called chlorofluorocarbons, or CFCs - once widely used as refrigerants and as propellants in spray cans - are responsible for the progressive thin of the ozone layer, which shields us from the lies ultraviolet radiation. The work of Rowland and Molina, along with that of other atmospherical scientists, has led to a worldwide phase-out of CFCs. The worry about ozone arose in 1974, when researchers source calculated that depletion of the oz one would allow excess ultraviolet sportsmanlike from the sun to leak through and reach Earths surface. The impact of excess UV light could be change magnitudely dangerous, harming crops, wildlife and farm animals, and increasing the incidence of skin cancer in humans. Meanwhile, ozone destruction has reached boot levels in recent years. The infamous ozone hole observed all over Antarctica during the Confederate Hemispheres springtime has been opening earlier and lasting longer. The major ozone loss, the hole, occurs every year inside a ring- shaped crest public figure called the polar vortex. In the zone of way between 10 and 13 miles high, the ozone was essentially being erased in springtime. Measurements soon showed that the flow of dangerous UV light had too increased at ground level directly beneath the ozone hole. Researchers soon pass judgment out that during the dark, cold winter months, airborne ice crystals tip to collect... If you want to get a full essay, ord! er it on our website: BestEssayCheap.com

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