nhpaeoate,par e hing to rr it we'repeing isscngn thcldeo thg concernsia n atbd mentio0thcen enyu look at ed ov ceur asroxy inca ccurd heyae probclo high thlg-avege. thers a real rstandwha stor t capadowat ot jufrohe rualecit's ohorununat ca ese ntul fctuaon wi atowfor me ds. on't nowtt i'somp buhn caiacon s, two odof exy lima naas ifora nd nevada - fiore y wd ot ree y wart hink ogy, ihink [inaudleo otetot e modeein aell he s he range of natural variability in precipiti evthoughtemperatus gi remarkay. idently that did ot get through. but that's what happenthe aractezation f precipitation isnot nlike today. not rain vers sno but he totawater vole s sill looking a llike the mer climate. >> let me ta acracat this. 's a great questi. its the arrier that a lot o water age face. on the,pa leo cmate, side e te past will e me deal with floods ad rough properly eal witthem if we had abetter since of th rom rin i he 1920s we wou probly make different assumptions onthe corado river maybe wewould not but was informatiow did not have about climattat wuld have changed potentiay a desion th watemanag