Tech | May 21, 2009 | 7 comments

Scientists demand global action to preserve water

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JanforGore
Scientists from major countries including India have come out with a declaration demanding a region-by-region response to increased water scarcity and heightened hazards.

An international group of scientists from the US, India, China and Britain, in a declaration, have said that melting glaciers, weakening monsoon rains, less mountain snowpack and other effects of a warmer climate will lead to significant disruptions in the supply of water to highly populated regions of the world.

The group convened by University of California San Diego and the University of Cambridge added that this will especially be the case near the Himalayas in Asia and the Sierra Nevada Mountains of the western United States.

More than two dozen international water experts participated in the "Ice, Snow, and Water: Impacts of Climate Change on California and Himalayan Asia" workshop held at UC San Diego recently.

Workshop experts represented the Indian Space Research Organization (ISRO), the UN World Climate Research Programme, the Chinese Academy of Sciences, the British Antarctic Survey, and the California Department of Water Resources as well as several American universities.

They noted heavy rains in Indian deserts, a recent drought in what is typically one of the wettest place on earth along the foot of the Himalayas, and other extreme weather events in recent decades.

Major rivers in both regions, like China's Yellow River and the Colorado River in the southwestern United States, routinely fail to reach the ocean now.

These extremes are signs of the climate and societally induced stresses that will be exacerbated in the future under continuing climate changes, threatening massive and progressive disruptions in the availability of drinking water to more than a billion people in the two regions.

"Solutions to immense problems have small beginnings and we began here," said Sustainability Solutions Institute Senior Strategist Charles Kennel. "I continue to be impressed by what a small group of dedicated people can achieve."

Workshop leaders plan to present the declaration at the 2009 Forum on Science and Technology in Society in Kyoto, Japan, taking place in October.

Research conducted at Scripps and at other research centers around the world have indicated that global warming and particulate air pollution, especially in the form of black carbon, are already disrupting natural supplies of water by raising air temperatures and by increasing the light absorption of snow and ice as pollutants darken the frozen surfaces.
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7 comments // Scientists demand global action to preserve water

  • sue4e3
  • tommytripper
    • 0
      tommytripper  
    • this is a great idea... sadly i see it ending with water being controlled by corporations... and you having to pay for the right to exist.

      there are already laws in place in some states that prohibit rain water capture and storage.

    • 3 years ago
  • stopnoise
    • 0
      stopnoise  
    • I wish people would had a special glass that would allow them to see all the particles that gets pushed from vehicle pollution into our lives. Parts of that gets stacked in their shoes and blown into their homes. All these particles gets pushed to the reservoirs, to the ocean. The fish eat the pollution and you end up with it in your stomach and blood stream. That goes for the water too. People need to be more aware and act! Do it Today!

    • 3 years ago
  • JanforGore
  • masterzip
    • 0
      masterzip  
    • I say toooooo late already, even if we can store the existing water, it will most likely be polluted by chemicals in the air, toxic runoff form the land, or poisoned be everything else.

    • 3 years ago
  • JanforGore
    • 0
      JanforGore  
    • Image
    • Project Surya

      Connecting the dots between how you cook and what you burn and its effect on a glacier is crucial to not only fighting global warming/climate change, but also global poverty and diseases.

    • 3 years ago
  • JanforGore
    • 0
      JanforGore  
    • Black Carbon's Effect On Glaciers

      "Between 25 and 35 percent of black carbon in the global atmosphere comes from China and India, emitted from the burning of wood and cow dung in household cooking and through the use of coal to heat homes. Countries in Europe and elsewhere that rely heavily on diesel fuel for transportation also contribute large amounts.

      The polluting effects of cooking using biomass like wood or cow dung in south Asia are illustrated through a measurement of aerosol optical depth, a way of measuring the quantity of pollutants in the air by the relative ability of light to penetrate through them. The upper image is a representation showing reconstructed levels of pollution from 2004 and 2005. The bottom image is a representation with the effects of biofuel cooking removed.

      "Per capita emissions of black carbon from the United States and some European countries are still comparable to those from south Asia and east Asia," Ramanathan said.

      In south Asia, pollution often forms a prevalent brownish haze that has been termed the "atmospheric brown cloud." Ramanathan's previous research has indicated that the warming effects of this smog appear to be accelerating the melt of Himalayan glaciers that provide billions of people throughout Asia with drinking water. In addition, the inhalation of smoke during indoor cooking has been linked to the deaths of an estimated 400,000 women and children in south and east Asia.

      Elimination of black carbon, a contributor to global warming and a public health hazard, offers a nearly instant return on investment, the researchers said. Black carbon particles only remain airborne for weeks at most compared to carbon dioxide, which remains in the atmosphere for more than a century. In addition, technology that could substantially reduce black carbon emissions already exists in the form of commercially available products.

      Ramanathan said that an observation program for which he is currently seeking corporate sponsorship could dramatically illustrate the benefits. Known as Project Surya, the proposed venture would provide some 20,000 rural Indian households with smoke-free cookers and equipped to transmit data. At the same time, a team of researchers led by Ramanathan would observe air pollution levels in the region to measure the effect of the cookers.

    • 3 years ago
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