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!, i2 -WAt‘htttrx)t:HlK)NIu.|5-wt-dnesday, Much 25. 2009 l UW scientist offers new explanation about the decline in ozone layer A University of Waterloo scien» ports a new theory that says cosmic cosmic ray and ozone data in the mechanism plays the dominant “The total o/oite values iii the tist says that an observed cyclic rays, rather than the sun's UV light. period of HBO-2007'. which cover role in causiitgthe hole." o/one hole In November and hole in the ozone layer provides play tlte dominant role in breaking two fttll I l -year solar cycles. The In the first submission of his December nearly reached the mini proofol a newozotte depletion the down ozone-depleting ittolecules data unambiguously show the time paper to Physical Review letters in mum values in the months on ‘ ory'involvingcosmic rays. and tbett ozone (Iosmic rays are correlations between cosmic ray August 2008 aprior to the start of record," Lu said " lhe 2008 ()lUllt‘ ()iiig llin lit. a professor of eitergy particles originating iii intensity and global ozone deple~ the omne hole season). In predict bolt- shrank quite slowly and per physics and astronomy and an space. tioii. as well as between cosmic ray ed one of the severest ozone losses sisted until the end of December. o/one depletion expert. outlined Ozone is a gas mostly conceit intensity and the ozone hole over in 2tXlt172tJtH as a result oi the cos- making it one of the longest lasting the theory In his new study. lust trated iii the ozone layer, a region the South Pole. itiit‘ ray cycle. o/oneholeson record." published in Physical Review let» located in the stratosphere several “ [his finding not only provides a llis sttidy quantitatively predict He added that iii earlier studies ters miles above the l:arth‘s surface. It fingerprint for the dominant role of ed that the mean total ozone in the he and former colleagues-foilnd a In said ll has generally accepted absorbs alittost all ofthe sun's higli~ the CUSlltlL‘rl’a‘y‘ mechanism in October hole over Antarctica would strong spatial ( orrelaition between for more than two decades that the frequency ultraviolet light, which is causing the ozone hole. but also be depleted to around to? l)obson cosintc ray intensity and (mine lutrtli's ozone layer is depleted by potentially damaging to life and contradicts the widely-accepted units 1””) lhe latest NASA UM] depletion. chlorine atoms produced by the causes such diseases as skin cancer photochemical theory," l.u said satellite data sets. released on "Lab itieasuremettts demon sun's ultraviolet lightrinduced and cataractslhe Antarctic (mine “These observations cannot be March l3, show that the mean total strated a mechanistti by which cos destniction of chlorofluorocarbons hole is larger than the sill: of North explained by that photochemical ozone in the ozone hole in October mic rays can cause drastic reactions ((THZs) in the atrttosphere. America. model Instead. they force one to 2008 was 197 DU. within five pet of ozone-depleting halogens inside But mounting evidence sup- In his study. Lu analyzes reliable conclude that the Cosmic ray centoflusprediction. polar clouds," l 1 Our Famous WM} CM) E ‘ ”‘6‘“ l Vorsprung ourchTechmk \, , A, v . .\\ a \‘.j’f,; $779 Ml ._.;.. 2 places 4':'-’:‘ We use trash fish and fresh ‘ ' ' hand cuttn‘es,onion nnqs plus much more everyday Fresh Daily Homemade But i . Onlon fling: In (ml lhe cars of your dreams. m... ,2... Hammer I TUESDAY “All" i \ Offers you never dreamed pOSSIble ”Mi We" I w -Hamburoet -Frles ' ‘5 -R- SoftDnnlt 6 i m on I Pitt ‘5" plus i Grilled Chicken on 1 Ian ‘4"nlum ‘ 4 Pt. Chicken Fingers I Eric: ‘8”. "‘0'! l 'lus tax ‘ /,.. _ s _ FAS‘rTAKEWTS-Ma I y, _. ' - â€"» é; \ / “ SW2 DRIVE-IN LTD. _ ’: sl‘ b.“ , “~‘“A y. K .. 2-" --...._~___ V.-. ‘9 ~ Shoo!” § ~ . “LWsfir'v' \/ . “W ' ' ~ " " ‘ “ 1;. 2. “ 7"f T“ mmn.u..wmno 519-884-1750 {It vw ,1- . 1 in” {N3 - iii. 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