Two years back I was invited ...
Published by Arjen Hoekstra, RIP 1967-2019 - University of Twente - Professor water management
Two years back I was invited by the WTO to reflect on the relation between water and trade. See the resulting paper: http://www.waterfootprint.org/Reports/Hoekstra-2010-InternationalTrade-FreshwaterScarcity.pdf.