Developing the greatest Blue Economy: Water productivity, fresh water depletion, and virtual water trade in the Great Lakes basin

Alex Mayer, Stanley Mubako, Benjamin L. Ruddell

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

The Great Lakes basin hosts the world's most abundant surface fresh water reserve. Historically an industrial and natural resource powerhouse, the region has suffered economic stagnation in recent decades. Meanwhile, growing water resource scarcity around the world is creating pressure on water-intensive human activities. This situation creates the potential for the Great Lakes region to sustainably utilize its relative water wealth for economic benefit. We combine economic production and trade datasets with water consumption data and models of surface water depletion in the region. We find that, on average, the current economy does not create significant impacts on surface waters, but there is some risk that unregulated large water uses can create environmental flow impacts if they are developed in the wrong locations. Water uses drawing on deep groundwater or the Great Lakes themselves are unlikely to create a significant depletion, and discharge of groundwater withdrawals to surface waters offsets most surface water depletion. This relative abundance of surface water means that science-based management of large water uses to avoid accidentally creating “hotspots” is likely to be successful in avoiding future impacts, even if water use is significantly increased. Commercial water uses are the most productive, with thermoelectric, mining, and agricultural water uses in the lowest tier of water productivity. Surprisingly for such a water-abundant economy, the region is a net importer of water-derived goods and services. This, combined with the abundance of surface water, suggests that the region's water-based economy has room to grow in the 21st century.

Original languageEnglish (US)
Pages (from-to)282-297
Number of pages16
JournalEarth's Future
Volume4
Issue number6
DOIs
StatePublished - Jun 1 2016

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water use
surface water
productivity
water
economics
resource scarcity
groundwater
lake
twenty first century
economy
lake basin
relative abundance
natural resource
human activity
water resource
world

Keywords

  • virtual water

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)
  • Environmental Science(all)

Cite this

Developing the greatest Blue Economy : Water productivity, fresh water depletion, and virtual water trade in the Great Lakes basin. / Mayer, Alex; Mubako, Stanley; Ruddell, Benjamin L.

In: Earth's Future, Vol. 4, No. 6, 01.06.2016, p. 282-297.

Research output: Contribution to journalArticle

Mayer, Alex ; Mubako, Stanley ; Ruddell, Benjamin L. / Developing the greatest Blue Economy : Water productivity, fresh water depletion, and virtual water trade in the Great Lakes basin. In: Earth's Future. 2016 ; Vol. 4, No. 6. pp. 282-297.
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