Gleick Waste NotPotential of EfficiencySector by Sector Usage Numbers ImportantCost-Benefit Analysis: needs to be inclusiveMcPherson : Desert LS in Tuscon -Urban vegetation reflects the cultural milieu and relationship with the physical environment.- Oasis in Desert; City as Oasis; Living within a desert environment-1950s. Cheap energy and water led =change: Evap Coolers/ A/C, decline of street trees-Since 70s urban veg has changed dramatically; due to Wtr Dept programs and Pricing: Desert LS an economic necessity.Pac Inst: Hidden Oasis: WC & Effic in LV. ‘07Cash for Grass 2000-2007: $71.3M, saving nearly 14KAF/yr. If savings for 25 years, ~ $205/AFElec power costs still substantial (1/3 of annual budget)Morris- Las VegasGroundwater dynamics – long history of limited resource/overdraft/conservation effortsCO River water- once a new, ‘unlimited’ supply, now it, too requires conservation strategies- Continual struggle for growing population to not overuse available water resources.-Now very aggressive conservation programs, but even more aggressive supply programs Colby-JacobsWhat mean by the statement about water management- “there are 2 Arizonas”?Ways science not integrated into management policies (groundwater overdraft)new approaches to demand and supply managementClimate change – likely increase water supply variabilityAll water transfers have impacts- some intended, some notPeter MayerEfficiency has tremendous potential in urban water useMonitoring and evaluation importantKristen Averyt- NOAATemp alone will change the dynamics of CO water: ‘water will be the delivery mechanism of the impacts of climate change in the West’.Are Cognitive challenges (social) in addition to physical challenges- Stationarity is DeadDrought a good model that people can relate to (observations)Climate scientists take language seriously: Uncertainty & ConfidenceScale of research important: models good at generalities, no telling what will happen in Bldr CtyFinal Review Geography 4501/5501:Western Water Spring 2010Postel. first asking of How Much Water A River Needs in late 1950s. in late 1980’s the Flow Regime idea starting: more than just minimum flow. new policies in S. Africa and Australia-continuum: stream health and human impactsEconomics and WaterEconomic signal is clearer in a ‘closed system’ like the Northern CO WDistrict or Australian ‘cap and trade’.Cost/benefit a good tool but must be clear what is internal to the process and what is external.Price may not equal value.Productivity of water increasingly important.T H E M E S StatesPrior AppropriationBeneficial UseEnvironment-Society Relationship (circle w/in circle)Productivity of water: goods/unitEnv FlowsClimate IssuesFinal Review Geography 4501/5501:Western Water Spring
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