Impact of climate change will be on water supplies
GLT
OSLO (Reuters) - The main impact of climate change will be on water
supplies and the world needs to learn from past cooperation such as
over the Indus or Mekong Rivers to help avert future conflicts,
experts said on Sunday.
Desertification, flash floods, melting glaciers, heatwaves, cyclones
or water-borne diseases such as cholera are among the impacts of
global warming inextricably tied to water. And competition for
supplies might cause conflicts.
"The main manifestations of rising temperatures...are about water,"
said Zafar Adeel, chair of UN-Water which coordinates work on water
among 26 U.N. agencies.
"It has an impact on all parts of our life as a society, on natural
systems, habitats," he told Reuters in a telephone interview.
Disruptions may threaten farming or fresh water supplies from Africa
to the Middle East.
"Therein lies the potential for conflicts," he said. Shortage of
water, such as in Darfur in Sudan, has been a contributing factor to
conflict.
But Adeel said that water had often proven a route for cooperation.
India and Pakistan have worked to manage the Indus River despite
border conflicts and Vietnam, Thailand, Laos and Cambodia have
cooperated in the Mekong River Commission.
"Water is a very good medium (for cooperation). It's typically an
apolitical issue that can be dealt with," said Adeel, who is also
director of the U.N. University's Canada-based Institute for Water,
Environment and Health.
250 MILLION
Regions likely to become drier because of climate change include
Central Asia and northern Africa. Up to 250 million people in Africa
could suffer extra stress on water supplies by 2020, according to the
U.N. panel of climate experts.
"There are many more examples of successful transboundary cooperation
than conflict over water," said Nikhil Chandavarkar, of the UN
Department of Economic and Social Affairs and Secretary of UN-Water.
"We are trying to take the examples of good cooperation -- the Mekong,
the Indus are examples. Even where there were hostilities in the
surrounding countries the agreements did function," he told Reuters.
Adeel said that water should have a more central role in debates on
food security, peace, climate change and recovery from the financial
crisis. "Water is central to each of these debates but typically isn't
seen as such," he said.
And efforts to combat global warming will themselves put more strains
on water because of rival economic demands -- such as for irrigation,
biofuels or hydropower.
Adeel noted efforts to manage water supplies by counting how much
water goes into products -- from beef to coffee.
One study showed that it took 15,000 litres to produce a pair of blue
jeans, he said. Making industries aware of water use could help shift
to conservation.
He said the world might reach a "millennium goal" of halving the
proportion of people without access to safe water by 2015 but was
failing in a related target of improving sanitation. About 2.8 billion
people lack access to basic sanitation.
For Reuters latest environment blogs, click on: blogs.reuters.com/
environment/
(Editing by Dominic Evans)