Water Footprint and Virtual Water Trade of Brazil

Freshwater scarcity has increased at an alarming rate worldwide; improved water management plays a vital role in increasing food production and security. This study aims to determine the water footprint of Brazil’s national food consumption, the virtual water flows associated with international trade in the main agricultural commodities, as well as water scarcity, water self-sufficiency and water dependency per Brazilian region. While previous country studies on water footprints and virtual water trade focused on virtual water importers or water-scarce countries, this is the first study to concentrate on a water-abundant virtual water-exporting country. Besides, it is the first study establishing international virtual water trade balances per state, which is relevant given the fact that water scarcity varies across states within the country, so the origin of virtual water exports matters. The results show that the average water footprint of Brazilian food consumption is 1619 m3/person/year. Beef contributes most (21%) to this total. We find a net virtual water export of 54.8 billion m3/year, mainly to Europe, which imports 41% of the gross amount of the virtual water exported from Brazil. The northeast, the region with the highest water scarcity, has a net import of virtual water. The southeast, next in terms of water scarcity, shows large virtual water exports, mainly related to the export of sugar. The north, which has the most water, does not show a high virtual water export rate.

[1]  Ylva Ran,et al.  Towards more spatially explicit assessments of virtual water flows: linking local water use and scarcity to global demand of Brazilian farming commodities , 2016 .

[2]  Lachun Wang,et al.  Virtual water flows in the international trade of agricultural products of China. , 2016, The Science of the total environment.

[3]  A. Hoekstra,et al.  The effect of inter-annual variability of consumption, production, trade and climate on crop-related green and blue water footprints and inter-regional virtual water trade: A study for China (1978-2008). , 2016, Water research.

[4]  A. Hoekstra,et al.  Imported water risk: the case of the UK , 2016 .

[5]  A. Hoekstra,et al.  Four billion people facing severe water scarcity , 2016, Science Advances.

[6]  Á. Borja,et al.  Quantified biotic and abiotic responses to multiple stress in freshwater, marine and ground waters. , 2016, The Science of the total environment.

[7]  A. Hoekstra,et al.  Mitigating the risk of extreme water scarcity and dependency: the case of Jordan , 2015 .

[8]  V. Silva,et al.  Medições e modelagem da pegada hídrica da cana-de-açúcar cultivada no Estado da Paraíba , 2015 .

[9]  M. Sartori,et al.  Unfolding the potential of the virtual water concept. What is still under debate , 2015 .

[10]  Scott A. Sisson,et al.  Increasing dependence on foreign water resources? An assessment of trends in global virtual water flows using a self-organizing time map , 2015, Ecol. Informatics.

[11]  M. Aldaya,et al.  Sustainability, Efficiency and Equitability of Water Consumption and Pollution in Latin America and the Caribbean , 2015 .

[12]  A. Hoekstra,et al.  Todayʼs virtual water consumption and trade under future water scarcity , 2014 .

[13]  A. Hoekstra,et al.  The Added Value of Water Footprint Assessment for National Water Policy: A Case Study for Morocco , 2014, PloS one.

[14]  A. Hoekstra,et al.  Water conservation through trade: the case of Kenya , 2014 .

[15]  Manfred Lenzen,et al.  International trade of scarce water , 2013 .

[16]  G. Q. Chen,et al.  Virtual water accounting for the globalized world economy: National water footprint and international virtual water trade , 2013 .

[17]  D. Vanham An assessment of the virtual water balance for agricultural products in EU river basins , 2013 .

[18]  A. Hoekstra,et al.  Water Footprint Assessment (WFA) for better water governance and sustainable development, editorial , 2013 .

[19]  Agricultural Virtual Water Trade and Water Footprint of U.S. States , 2013 .

[20]  Luca Ridolfi,et al.  Local and global perspectives on the virtual water trade , 2012 .

[21]  Martina Flörke,et al.  The Role of Virtual Water Flows in Physical Water Scarcity: The Case of Central Asia , 2012 .

[22]  Naota Hanasaki,et al.  Evolution of the global virtual water trade network , 2012, Proceedings of the National Academy of Sciences.

[23]  A. Hoekstra,et al.  A Global Assessment of the Water Footprint of Farm Animal Products , 2012, Ecosystems.

[24]  A. Hoekstra,et al.  The water footprint of humanity , 2011, Proceedings of the National Academy of Sciences.

[25]  Matthew Egan,et al.  The Water Footprint Assessment Manual. Setting the Global Standard , 2011 .

[26]  M. Aldaya,et al.  The Water Footprint Assessment Manual: Setting the Global Standard , 2011 .

[27]  Arjen Ysbert Hoekstra,et al.  National water footprint accounts: the green, blue and grey water footprint of production and consumption , 2011 .

[28]  Yasir E. Mohieldeen,et al.  Virtual water 'flows' of the Nile Basin, 1998-2004: A first approximation and implications for water security , 2010 .

[29]  M. Llamas,et al.  Water footprint and virtual water trade in Spain , 2010 .

[30]  Arjen Ysbert Hoekstra,et al.  The external water footprint of the Netherlands: Geographically-explicit quantification and impact assessment , 2009 .

[31]  Arjen Ysbert Hoekstra,et al.  Going against the flow: A critical analysis of inter-state virtual water trade in the context of India’s National River Linking Program , 2009, Physics and Chemistry of the Earth, Parts A/B/C.

[32]  Arjen Y. Hoekstra,et al.  The global component of freshwater demand and supply: an assessment of virtual water flows between nations as a result of trade in agricultural and industrial products , 2008 .

[33]  Jing Ma,et al.  Virtual versus real water transfers within China , 2006, Philosophical Transactions of the Royal Society B: Biological Sciences.

[34]  Hubert H. G. Savenije,et al.  Water saving through international trade of agricultural products , 2005 .

[35]  A. Hoekstra,et al.  Globalisation of water resources: Global virtual water flows in relation to international crop trade , 2005 .

[36]  P. Q. Hung,et al.  Globalisation of water resources : international virtual water flows in relation to crop trade , 2005 .

[37]  V. P. D. Silva On climate variability in Northeast of Brazil , 2004 .

[38]  S. Kanae,et al.  Virtual water trade and world water resources. , 2004, Water science and technology : a journal of the International Association on Water Pollution Research.

[39]  睦代 門平,et al.  Food and Agriculture Organization (FAO) , 2002, International Organizations and the Law of the Sea 2001.

[40]  D. Zimmer,et al.  Virtual water in food production and global trade : Review of methodological issues and preliminary results , 2003 .

[41]  L. S. Pereira,et al.  Crop evapotranspiration : guidelines for computing crop water requirements , 1998 .