题目内容:
根据以下材料,回答题Text 1
OfficialsinTampaFlorida.gotasurpriserecentlywhenalocalfirmbuildingthestate'sfirstethanol*-productionfactoryputinarequestfor400,000gallonsadayofcitywater.TherequestbyUSEnvirofuelswouldmakethefacilityoneofthecity'stoptenwaterconsumersovernight,andthecompany
planstodoubleitssize.Floridaissufferingfromaprolongeddrought.Riversandlakesareatrecordlowsandresidentswonderwheretheextrawaterwillcomefrom.
Theyarenotalone.Abacklashagainstthefederallyfinancedbiofuelsboomisgrowingaroundthecountry,and"watercouldbetheAchillesheel"ofethanol,saidareportbytheMinneapolis-basedInstitutefor.AgricultureandTradePolicy.
Thenumberofethanolfactorieshasalmosttripledinthepasteightyearsfrom50toabout140.Afurther60orsoareunderconstruction.In2007,PresidentGeorgeBushsignedlegislationrequiring
afivefoldincreaseinbiofuelsproduction,to36billiongallonsby2022.
Thisiscontroversialforseveralreasons.Therearedoubtsabouthowgreenethanolreallyis(somesaytheproductionprocessusesalmostasmuchenergyasitproduces).Somearguethatusing
farmlandforethanolpushesupfoodpricesinternationally(worldwheatpricesrose25%recently,perhapsasaside-effectofAmerica'sethanolprogramme).Butoneoftheleast-knownbutbiggestworriesisethanol'sextravagantuseofwater.
Atypicalethanolfactoryproducing50mgallonsofbiofuelsayearneedsabout500gallonsofwateraminute.Mostofthatgoesintotheboilingandcoolingprocess,whichissimilartomakingbeer.
Somewaterislostthroughevaporationinthecoolingtowerandinwastedischarge.Allthisisputtingaheavyburdenonaquifersinsomecorn-growingareas.
ResidentswenttocourtinMissouritohalta$165mfacilitybeingbuiltbyGulfstreamBioflexEnergyLLCwhichwasprojectedtodraw1.3mgallonsofwatereverydayfromtheOzarkaquifer.Projects
arebeingchallengedinMinnesota,Iowa,Nebraska,KansasandincentralIllinois,whereeightethanolfacilitiesaresituatedovertheMahometaquifer:Demandforcornissuchthatmorelandisalso
beingploughedupindrierregionsoftheGreatPlainsstatestothewestofthecornbelt,whereirrigationisrequired,increasingwaterdemandfurther.
Thegoodnewsisthatethanolplantsarebecomingmoreefficient.Theynowuseabouthalfasmuchwaterpergallonofethanolastheydidadecadeago.Newtechnologymightbeabletohalve
theamountofwateragain,saysMikeFatigati,vicepresidentofDelta-TCorp,aVirginiacompanywhichhasdesignedasystemthatdoesnotdischargeanywastewater.Butothersaresceptical."Therearethingsyoucancloseloop(i.e.recycleefficiently)andthingsyou
can't,"saysPaulGreene,aseniordirectorforbiofuelswithSiemensWaterTechnologies,designersofthewater-purificationtechnologyusedinethanolfactories.Perhapsethanoljustisn'tasbio-friendlyasitlooks.
*ethanol=alcoholfuel
USEnvirofuels A.isalocalcompanywhichplanstodoubleitssize.
B.isoneofTampa'stoptenwaterconsumers.
C.isresponsibleforTampa'swatershortage.
D.isgoingtobecomethelargestfuelsupplierinTampa.
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