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...Linking ecology and economy through the ecosystem services approach in calumet region sabina l shaikh ph d university of chicago uchicago edu economics relationship humans to nature how is protection an economic investment why do we frame as values quarter case study challenges valuation markets for andecology flow resources not a closedloop system it contained within natural circular flowof interact with extraction raw materials disposal waste into environment but also use systems more broadly indirectly sometimes ways that are yet even be defined so does deal dealwith ecological production function structure human actions goods private public adapted from valuing national academy sciences ecosystems provides which have significant value capital green infrastructure food fish forest products some habitat biodiversity carbon sequestration soil management erosion control flood groundwater recharge storage water purification decomposition climate regulation pollination further spaces pot...