chapter18

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Unformatted text preview: source: IPCC report) deviation from the 1961 to 1990 average )!#&,"'"/$!(-)**1% .",-$0% 2(+<*)#("!2% .,"+% K)0ENI% from the average of the black verage. period 1993 to 2003. "-$)!%2<,.)-$6%)-#%#"%(!#$/,)#$%&(/&*1%A),()G*$%2<,.)-$%-&)!/$2% F(#&% (!%&$)#%)!0%.,$2&F)#$,6%)!0%-"<*0%#&$,$.",$%',"A(0$%(!0(-)#",2% 3T)!P2% $#% )*56% 7888?% G<#% -),$% 2&"<*0% G$% #)P$!% (!% (!#$,',$#(!/% ".% /*"G)*% -&)!/$% 3O#),P% $#% )*56% 788>?5% O"+$% 2#<0($2% &)A$% 2'),2$% &10,"/,)'&(-% 0)#)6% 2(!-$% )''),$!#% #,$!02% -"<*0% ,$" %$-#% 390 706 
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 much of Africa and more common in the tropics and subtropics. of change are complex. The ong e emphasizes t 51"#4$67,&)*($81(%11($,+'&1($#4+,+$&%$*$%-&'4#$.+),+*%+$&($#4+$lsom-twrmt rfercord&($ra1,+*2$tahnad )4*('+$ O4+%+$ 1))",,+.$ *!1"#$ #4+$ %*8+$ #&8+$ *%$ * As temperatures rise, the likelihood of precipitation falling as patterns of precipitation vary e ha om yea to year, *(("*-$,*('+$17$,*&(7*--$9:&'",+$;2;<=>$*(.$*$.+),+*%&('$#,+(.$&($ughts)4*('+$&($#4+$SKK$4H*$'+1?1#+(#&*-$4+&'4#$*(.$#B?411($#,*)T% rain rather than snow increases, especially in autumn and spring even prolonged multi-year dro are usually punctuated by a at the beginni*,+*/*0+,*'+.$?,+)&?&#*#&1($9:&'",+$;2@<=2$ ar of heavy rains; for instance as E&($iño influences are fel#4+$ (1,#4+,($ H*)&! 9Q1('$ +#$ *-2>$ JKKJW$ %++ ng and end of the snow season, and in areas where ye l N %"88+,$ 10+,$ t. An $)$ temperatures are near freezing. Such changes are observed in example may be the wet winter 04-2005 in the sout wes A1(%11($0*,&*!&-&#B$.+?+(.%$1($8*(B$7*)#1,%>$7,18$,+'&1(*-$goft 205+)#&1($o;2X2;=$hwpatcekr.n #1$ #4+$ +(-*,'+8+(#>$ &(#+(%&! ,+-*#+.$ $)*#&1($ *(....
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This document was uploaded on 11/21/2013.

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