Wasted food is also wasted water
The
world's growing food crisis - which triggered riots and demonstrations
in over 30 developing nations early this year - is being aggravated
primarily by wastage and overconsumption.
'Obesity is a much bigger problem than undernourishment,' said
Professor Jan Lundqvist of the Stockholm International Water Institute
(SIWI).
He pointed out that there are 850 million people worldwide who
suffer from hunger and starvation daily compared with over 1.2 billion
people who are overweight and obese, which can lead to a vast range of
health problems like diabetes and heart disease.
Speaking on the sidelines of the Stockholm International Water
Conference, Lundqvist told reporters Thursday that 'improving water
productivity and reducing the quantity of food wasted can enable us to
provide a better diet for the poor and enough food for growing
populations.'
A study titled 'Saving Water' released here argues that while the
risk of under-nourishment is reduced with an increasing supply of food
-- provided access is ensured -- the risk of over-eating and wastage is
also likely to increase when food becomes more abundant in some
societies.
In the United States, as much as 30 percent of food products, worth
some 48.3 billion dollars, is thrown away annually just by households
alone.
'That's like leaving the tap running and pouring 40 trillion litres
of water into the garbage can -- enough water to meet the household
needs of 500 million people,' says the report co-authored by SIWI,
along with the Food and Agriculture Organisation (FAO) in Rome and the
International Water Management Institute (IWMI) in Sri Lanka.
The study also says that wasted food is wasted water because of the
large quantum of water that goes into the cultivation and processing of
food.
Professor John Anthony Allan of King's College, London, the winner
of the 2008 Stockholm Water Prize, is the author of a concept called
'virtual water' where he argues that people consume water not only when
they drink it or take a shower but also when they consume food
products.
The virtual water concept measures water embedded in the production
and trade of food and consumer products-- from the field and the
factory to the dinner table.
A cup of coffee, for example, accounts for about 140 litres of water
that is used in growing, producing, packaging and shipping the beans.
One single hamburger accounts for an estimated 2,400 litres of
water; one kilogramme of beef consumes 15,000 litres of water; a slice
of white bread takes in 40 litres of water; and one kilogramme of
cheese absorbs 5,000 litres of water.
'I was very surprised with the high numbers. But it catches
everybody's attention,' Allan told IPS. The figures, he said, were
worked out scientifically by researchers in the Netherlands.
Asked whether there was a direct link between water and food
scarcities, he said while there is a shortage of food in some parts of
the world, there is also a need for twice as much food in other parts
of the world.
'So, there is a distribution problem. But this also reflects the maldistribution of water,' he said.
Charlotte de Fraiture, a researcher at IWMI, says that as much as
half of the water used to grow food globally may be lost or wasted.
'Curbing these losses and improving water productivity provides
win-win opportunities for farmers, business, ecosystems, and the global
hungry,' she said.
And an effective water-saving strategy requires that minimising food
wastage is firmly placed on the political agenda, she added.
SIWI says a 50 percent reduction of losses and wastage in the
production and consumption chain is a necessary and achievable goal.
Meanwhile, a report released by the World Wide Fund for Nature (WWF)
says that while each person in Britain drinks, hoses, flushes and
washes their way through around 150 litres of water a day, they consume
about 30 times as much in 'virtual water' embedded in food, clothes and
other items -- the equivalent of about 58 bathtubs full of water every
day.
Titled 'UK Water Footprint: The impact of the UK's food and fibre
consumption on global water resources', the study released here points
out that Britain is the world's sixth largest importer of water.
'Only 38 percent of UK's total water use comes from its own rivers,
lakes and groundwater reserves,' Stuart Orr, WWF-UK's water footprint
expert said.
The rest, he said, is taken from water bodies in many countries
across the world to irrigate and process food and fibre crops that
people in Britain subsequently consume.
He said that WWF is encouraging some of the largest companies in
Britain to evaluate their water footprints, which assesses the amount
of water a business uses both directly and indirectly through its
supply chain.
According to WWF, a single tomato from Morocco takes 13 litres of
water to grow, while a shirt made from cotton grown in Pakistan or
Uzbekistan soaks up 2,700 litres of water.
Orr said most consumers aren't even aware that it takes massive
amounts of water to grow the food and fibres consumed -- on top of what
is used for drinking, washing and watering the lawn.
'Therefore, it is essential that business and government identify
the areas that could potentially suffer water crises and develop
solutions so the environment is not over-exploited to the point that
people and wildlife lose out,' Orr added.
Contact information | n/a |
---|---|
News type | Inbrief |
File link |
http://sworldist.wordpress.com/2008/08/26/wasted-food-is-also-wasted-water/ |
Source of information | Sworldist.wordpress.com |
Keyword(s) | agriculture, ecosystem, food waste, groundwater, waste food, waste water, water management, water resources |
Subject(s) | AGRICULTURE , CHARACTERISTICAL PARAMETERS OF WATERS AND SLUDGES , DRINKING WATER AND SANITATION : COMMON PROCESSES OF PURIFICATION AND TREATMENT , FINANCE-ECONOMY , HYDRAULICS - HYDROLOGY , NATURAL MEDIUM , POLICY-WATER POLICY AND WATER MANAGEMENT , PREVENTION AND NUISANCES POLLUTION , SANITATION -STRICT PURIFICATION PROCESSES |
Geographical coverage | International |
News date | 29/08/2008 |
Working language(s) | ENGLISH |