Water Footprint Newsletter

Water Footprint at the WorldWaterWeek in Stockholm

Sep 7 – morning: Seminar: Water Footprint and Public Policy: What can Governments do to Reduce Humanity’s Water Footprint?

Sep 9 – whole day: 2nd Annual Water Footprint Network Partner Forum (for WFN partners only).

Detailed session programmes at www.waterfootprint.org  – see the agenda.

Upcoming Water Footprint Training Courses

  1. Beijing Oct 2010: Regional Water Footprint Training Course.
  2. Amsterdam Nov 2010: International Water Footprint Training Course.

Registration forms available at www.waterfootprint.org/?page=files/agenda

Burning water: The water footprint of biofuel-based transport

Transport per train or electric car using bio-electricity (8-19 and 11-13 litres per passenger km) is more water efficient than transport by car driven by bio-ethanol (36-212) or by airplane using bio-ethanol (65-136 litres per passenger km). Download report: www.waterfootprint.org/Reports/Report44-BurningWater-WaterFootprintTransport.pdf

The projected water footprint of road transport in 2030

The transition to a larger share of biofuels will lead to a larger WF for the global transport sector. It is expected that the global annual biofuel WF will increase more than tenfold, from about 90 km3/yr today to 970 km3/yr in 2030. The USA, China and Brazil contribute most, together consuming approximately 54 percent of the global biofuel WF in 2030. Download report: www.waterfootprint.org/Reports/Report41-WaterFootprintCentralAsia.pdf

Water footprint of paper

The water footprint of printing and writing paper is estimated to be between 300 and 2600 m3/ton. That is: 2-13 litres for an A4 sheet of paper. Substantial savings can be achieved by increasing the recovery percentages worldwide. Download report: www.waterfootprint.org/Reports/Report46-WaterFootprintPaper.

Water footprint of our bread

Global wheat production requires 108 billion cubic meters of water per year. This means 1830 m3 per ton on average. 70% comes from green water, about 19% is blue water; 11% is grey water (pollution). Local-specific data are shown on a grid of 10×10 km2. The Ganges and Indus river basins together account for 47% of the blue water footprint related to global wheat production. Download paper: www.waterfootprint.org/Reports/Mekonnen-Hoekstra-2010-waterfootprint-wheat.pdf.

Water footprint of rice

The consumption of rice products in the EU27 alone is responsible for the annual evaporation of 2,279 million m3 of water and polluted return flows of 178 Mm3 around the globe, mainly in India, Thailand, the USA and Pakistan. Download report: www.waterfootprint.org/Reports/Report40-WaterFootprintRice.pdf.

Water footprint in Central Asia

Water-intensive, low-value crops such as rice, which requires 7000 m3/ton in Turkmenistan, would use half that amount if grown in less arid conditions and more clayey soils in Kyrgyzstan, Tajikistan. Better option maybe: import from outside the basin. Shifting some crops, such as grains, to rain-fed areas or areas with more rainfall could substantially reduce the volume of irrigation water consumed in the Aral Sea basin. Download report: www.waterfootprint.org/Reports/Report41-WaterFootprintCentralAsia.pdf. 

Educational materials

Growing Water Footprint Network

The Water Footprint Network continues to grow rapidly. The Network currently consists of 122 partners, from all sectors, from all continents.

More information

Website: www.waterfootprint.org Contact: info@waterfootprint.org

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