简介:Sustainableurbanizationisadynamic,multi-dimensionalprocess.Itembracesrelationshipsbetweenallhumansettlements,fromsmalltownstometropolises,aswellasbetweenurbancentresandtheirsurroundingruralareas.Mostcrucially,itincludesnotonlyenvironmentalbutalsosocial,economicandpolitical-institutionalsustainability.Tomovetowardssustainableurbanization,itwillbenecessarytolearnfromrecentexperienceandtodevelopandoperationalisenewideasandapproachestoaddressawiderangeofconcerns.TheWorldSummitonSustainableDevelopmentprovideatimelyopportunitytolookmorecloselyatthechallengesandopportunitiesposedbyurbanization-anopportunitytobroadenthewaysinwhichwethinkaboutsustainabledevelopmentandthemeansbywhichtheglobalcommunityseekstoachieveit.
简介:ThewatersupplyandsanitationsysteminDaresSalaamfaUinawkwardconditioncausedbyseverewaste,poorinstallmenttechnology,inadequatecoverageandmaintenanceandlackofmodemsanitationmodels.FindingbothcentralauthoritiestechnicallyandeconomicaUyunabletoimproveit,localcitizengroupslookforaffordablewaysofimprovingthenecessaryinfrastructurethroughtheirownefforts.Whiletheirself-helpinitiativeshavebeensuccessful,theyurgentlyneedsupportininformationandtechnologyforbettersolutionsandproperuse.