Rating is available when the video has been rented.
This feature is not available right now. Please try again later.
Uploaded on Feb 23, 2010
Farming accounts for 70 percent of water used in the world today, depleting supplies and polluting lakes and rivers. Kevin Parris, agriculture expert at the OECD, says climate change and water scarcity will mean farmers have be more efficient - use less water to produce the same amount of food at the same price. For more information visit: www.oecd.org