Navigation path

Themes
Agriculture & food
  Agriculture
  Animal health and welfare
  Food safety & health risks
  Forestry
  Marine resources & aquaculture
  Other
Energy
Environment
ERA-NET
Health & life sciences
Human resources & mobility
Industrial research
Information society
Innovation
International cooperation
Nanotechnology
Pure sciences
Research infrastructures
Research policy
Science & business
Science in society
Security
SMEs
Social sciences and humanities
Space
Special Collections
Transport

Countries
Countries
  Argentina
  Australia
  Austria
  Belarus
  Belgium
  Brazil
  Bulgaria
  Cameroon
  Canada
  China
  Colombia
  Croatia
  Cyprus
  Czech Republic
  Denmark
  Egypt
  Estonia
  Finland
  France
  Georgia
  Germany
  Ghana
  Greece
  Hungary
  Iceland
  India
  Ireland
  Israel
  Italy
  Japan
  Kazakhstan
  Kenya
  Korea
  Latvia
  Lithuania
  Luxembourg
  Malta
  Mexico
  Netherlands
  Nigeria
  Norway
  Peru
  Poland
  Portugal
  Romania
  Russia
  Senegal
  Serbia
  Slovakia
  Slovenia
  South Africa
  Spain
  Swaziland
  Sweden
  Switzerland
  Taiwan
  Tunisia
  Turkey
  Ukraine
  United Kingdom
  United States


   Headlines

Last Update: 15-10-2010  
Related category(ies):
Agriculture & food  |  Research policy  |  Environment

 

Add to PDF "basket"

Better global water management for better environmental and economic benefits

Rivers that serve 80% of the world's population are threatened by agricultural runoff, pollution and invasive species, according to a new international study. 'Riverthreat' was funded in part by the EU's EVOLTREE ('Evolution of trees as drivers of terrestrial biodiversity') project, which received just over EUR 14 million under the 'Sustainable development, global change and ecosystems' Thematic area of the Sixth Framework Programme (FP6). The findings were recently published in the journal Nature.

Aerial view of river © Shutterstock
Aerial view of river
© Shutterstock

Researchers, led by the City College (CCNY) of the City University of New York (CUNY) and the University of Wisconsin, studied the effects of a variety of environmental stressors on water systems. They found that in addition to threatening human lives, pollutants also endanger the biodiversity of 65% of the world's river habitats and put thousands of aquatic wildlife species at risk. The team produced a series of maps documenting these negative impacts using a computer-based framework.

'We can no longer look at human water security and biodiversity threats independently,' said Professor Charles J. Vörösmarty from CCNY, one of the authors of the study. He noted that the two needed to be linked, saying 'the systematic framework we've created allows us to look at the human and biodiversity domains on an equal playing field'. He and his team believe the framework 'offers a tool for prioritising policy and management responses to a global water crisis'.

'We've integrated maps of 23 different stressors and merged them into a single index,' explained Professor Peter McIntyre from the University of Wisconsin. 'In the past, policymakers and researchers have been plagued by dealing with one problem at a time. A richer and more meaningful picture emerges when all threats are considered simultaneously.'

The researchers found that the security of human water supplies were highly threatened in both developed and developing nations, but insisted that the expensive engineering schemes used by rich western countries trying to solve such problems were untenable for poorer nations, and called for a global, more economic approach to water security.

'In the industrialised world, we tend to compromise our surface waters and then try to fix problems by throwing trillions of dollars at the issues,' Professor Vörösmarty remarked. 'We can afford to do that in rich countries, but poor countries can't afford to do it.'

The team said causes of degradation in many of the developing world's most threatened rivers bore striking similarities to those in wealthy countries and suggested there were cost-effective solutions to these problems.

For example, Professor Vörösmarty argued it would be more cost effective to ensure that river systems are not impaired in the first place by better land use management, better irrigation techniques and greater emphasis on protecting ecosystems. Healthy ecosystems provide many valuable, and free, services to society by providing clean water, flood control, and food supplies.

One of the study's goals is to support international protocols that can be used for water system protection. The researchers believe an international approach is critical since more than 250 river basins cross international borders.

'It is absolutely essential to have information and tools that can be shared across nations,' stressed Professor Vörösmarty. 'Our knowledge of these systems is progressively worsening as nations fail to invest in basic monitoring. How can we craft protocols on biodiversity protection and human water security without good information?'

Researchers from Australia, France, Germany and Switzerland contributed to this study.


Convert article(s) to PDF

No article selected


loading


Search articles

Notes:
To restrict search results to articles in the Information Centre, i.e. this site, use this search box rather than the one at the top of the page.

After searching, you can expand the results to include the whole Research and Innovation web site, or another section of it, or all Europa, afterwards without searching again.

Please note that new content may take a few days to be indexed by the search engine and therefore to appear in the results.

Print Version
Share this article
See also

Riverthreat
Nature
'Climate change may crumble Asian water towers'





  Top   Research Information Center