Showing posts with label Virtual Water. Show all posts
Showing posts with label Virtual Water. Show all posts

Thursday, March 25, 2010

Jordan Identifies Water as a Policy Priority

One of the world’s water-poorest countries, Jordan celebrated World Water Day by identifying its water shortage as the greatest challenge to its development. Per capita water consumption in Jordan, according to the Jordanian water and irrigation ministry is far below the international water poverty line of 1,000 cubic meters per person per year. The United Nations ranks Jordan alongside Kuwait, the UAE and Bahrain as one of the world’s ten most thirsty countries with a per capita water consumption of 145 cubic meters a year. The country’s water shortage is heightened by the influx of hundreds of thousands of refugees from Iraq and an annual 2.3 percent population growth.

The situation is made worse by constantly increasing demand. The country’s population of six million is growing at a rate of 2.3 per cent annually. Jordan’s water resources have also come under increased strain with the influx of 500,000 to 700,000 Iraqi refugees since the US-led war in Iraq began in 2003.

“One of the key challenges the water sector faces is that the supply-and-demand equation is not balanced,” The National quotes Water and Irrigation Minister Mohammad Najar as saying. “Also water resources are limited, and the (process) of depleting underground water … are major challenges the ministry is facing.” Najar said the ministry was having difficulty stopping illegal pumping of underground and surface water and enforcing laws and regulations. Officials say mismanagement and lack of maintenance further contribute to the shortage. An estimated 40 percent of the kingdom’s water is lost annually to worn-out pipes, leakage and water theft.

The National quotes water expert Dureid Mahasneh as also blaming ill-advised agricultural policies. “We wrongly export our water in the forms of tomatoes to Europe,” Mahasneh says. “There is no need to grow apricots and peaches in winter as they consume so much water. The priority should be for drinking water.”

The government hopes that two major projects will help alleviate the shortage. The Dissi project, which is expected to provide Amman by 2013 with 100 cubic meters of water per year from an ancient desert aquifer 325km south of the capital near the border with Saudi Arabia. The project, which kicked off this month, is expected to be complete in 2013 at a cost of US$990m (Dh3.6 billion). The other is a controversial plan to build a canal linking the Red Sea and the Dead Sea Canal at an estimated $2bn. The project has long been a target for environmentalists and been mired in the intricacies of the Arab-Israeli conflict.

Monday, March 1, 2010

Researcher Tracks Water Use

Researcher Tracks Water Use

Studying how US industry uses scarce water resources

Just think, every time you feed Fido or flip a spoonful of sugar into your coffee cup, you use more than 300 gallons of water.

Checking the amounts of water it takes to make a $1 worth of sugar, cat and dog food or milk is part of a comprehensive study by Carnegie Mellon University researchers to document American industry's thirst for this scarce resource.

Chris T. Hendrickson, the Duquesne Light Professor of Civil and Environmental Engineering, said the study shows that most water use by industry occurs indirectly as a result of processing, such as packaging and shipping of food crops to the supermarket, rather than direct use, like watering crops.

The study found it takes almost 270 gallons of water to produce a $1 worth of sugar; 140 gallons to make $1 worth of milk; and 200 gallons of water to make $1 worth of cat and dog food.

"The study gives us a way to look at how we might use water more efficiently and allows us to hone in on the sectors that use the most water so we can start generating ideas and technologies for better management," said Hendrickson, co-director of Carnegie Mellon's Green Design Institute, a major interdisciplinary research effort aimed at making an impact on environmental quality through design.

Hendrickson, along with civil engineering Ph.D. candidates Michael Blackhurst and Jordi Vidal, said his team is trying to help industries track and make better management decisions about how they use water, which makes up more than 72 percent of the earth's land surface.

The study, featured in the Feb. 23 edition of the journal Environmental Science & Technology, reports that a lot of water consumption is hidden because companies don't use all the water directly.

"We discovered that among 96 percent of the sectors evaluated, indirect use exceeded direct uses throughout the supply chain," Hendrickson said.

But Hendrickson and Blackhurst are quick to report that their data are national findings and do not apply regionally. In addition, they could only track withdrawals, and were unable to determine how much water was returned to the system or recycled.

"That is a big deal because water that gets degraded during industrial processes might not be suitable for future uses," Hendrickson said. "Effective water management is critical for social welfare and our fragile ecosystems."

Source: Redorbit.com