城市规划专业英语(3).ppt
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城市规划专业英语(3).ppt
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ProfessionalEnglishofUrbanPlanningLecturer:
PENGLihua,LillianaEmail:
CollegeofArchitecture,NJUTTEDtalkTEDisanonprofitdevotedtoIdeasWorthSpreading.Itstartedoutin1984asaconferencebringingtogetherpeoplefromthreeworlds:
Technology,Entertainment,Design.Lateronthetopichasbeenextendedtoscience,business,thearts,technologyandtheglobalissuesfacingourworld.TEDconferencesbringtogethertheworldsmostfascinatingthinkersanddoers,whoarechallengedtogivethetalkoftheirlives(in18minutesorless).OnTED.com,thebesttalksandperformancesfromTEDandpartnersavailabletotheworldareprovided,forfree.Morethan1500TEDTalksarenowavailable,withmoreaddedeachweek.http:
/changeisalreadyaheavytopic,anditsgettingheavierbecausewereunderstandingthatweneedtodomorethanweare.Wereunderstanding,infact,thatthoseofuswholiveinthedevelopedworldneedtobereallypushingtowardseliminatingouremissions.TheshareablefutureofcitiesIwontshowyouverymanygraphstoday,butifIcanjustfocusonthisoneforamoment,itreallytellsusalotofwhatweneedtoknow-whichis,quitesimply,thatifyoulook,forexample,attransportation,amajorcategoryofclimateemissions,thereisadirectrelationshipbetweenhowdenseacityisandtheamountofclimateemissionsthatitsresidentsspewoutintotheair.Andthecorrelation,ofcourse,isthatdenserplacestendtohaveloweremissions-whichisntreallyallthatdifficulttofigureout,ifyouthinkaboutit.TheshareablefutureofcitiesBasically,wesubstitute,inourlives,accesstothethingswewant.Wegooutthereandwehopinourcarsandwedrivefromplacetoplace.Andwerebasicallyusingmobilitytogettheaccessweneed.Butwhenweliveinadensercommunity,suddenlywhatwefind,ofcourse,isthatthethingsweneedarecloseby.Andsincethemostsustainabletripistheonethatyouneverhadtomakeinthefirstplace,suddenlyourlivesbecomeinstantlymoresustainable.Anditispossible,ofcourse,toincreasethedensityofthecommunitiesaroundus.TheshareablefutureofcitiesSomeplacesaredoingthiswithnewecodistricts,developingwholenewsustainableneighborhoods,whichisniceworkifyoucangetit,butmostofthetime,whatweretalkingaboutis,infact,reweavingtheurbanfabricthatwealreadyhave.Soweretalkingaboutthingslikeinfilldevelopment:
reallysharplittlechangestowherewehavebuildings,whereweredeveloping.Urbanretrofitting:
creatingdifferentsortsofspacesandusesoutofplacesthatarealreadythereTheshareablefutureofcitiesUrbanretrofitting:
creatingdifferentsortsofspacesandusesoutofplacesthatarealreadythere.Increasingly,wererealizingthatwedontevenneedtodensifyanentirecity.Whatweneedinsteadisanaveragedensitythatrisestoalevelwherewedontdriveasmuchandsoon.Andthatcanbedonebyraisingthedensityinveryspecificspotsawholelot.TheshareablefutureofcitiesIncreasingly,wererealizingthatwedontevenneedtodensifyanentirecity.Whatweneedinsteadisanaveragedensitythatrisestoalevelwherewedontdriveasmuchandsoon.Andthatcanbedonebyraisingthedensityinveryspecificspotsawholelot.Soyoucanthinkofitastentpolesthatactuallyraisethedensityoftheentirecity.TheshareablefutureofcitiesNowallofthesearefineprojects,buttheyreallyhavemissedanessentialpoint,whichisitsnotabouttheleavesabove,itsaboutthesystemsbelow.Dothey,forinstance,capturerainwatersothatwecanreducewateruse?
Waterisenergyintensive.Dothey,perhaps,includegreeninfrastructure,sothatwecantakerunoffandwaterthatsgoingoutofourhousesandcleanitandfilteritandgrowurbanstreettrees?
TheshareablefutureofcitiesDotheyconnectusbacktotheecosystemsaroundusby,forexample,connectingustoriversandallowingforrestoration?
Dotheyallowforpollination,pollinatorpathwaysthatbeesandbutterfliesandsuchcancomebackintoourcities?
Dotheyeventaketheverywastematterthatwehavefromfoodandfiberandsoforth,andturnitbackintosoilandsequestercarbon-takecarbonoutoftheairintheprocessofusingourcities?
TheshareablefutureofcitiesBecauserightnow,oureconomybyandlargeoperatesasPaulHawkensaid,bystealingthefuture,sellingitinthepresentandcallingitGDP.Andifwehaveanothereightbillionorsevenbillion,orsixbillion,even,people,livingonaplanetwheretheircitiesalsostealthefuture,weregoingtorunoutoffuturereallyfast.Butifwethinkdifferently,Ithinkthat,infact,wecanhavecitiesthatarenotonlyzeroemissions,buthaveunlimitedpossibilitiesaswell.
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