This article in The Conversation gives a useful update about the water crises affecting people in the Caribbean Islands. The Water-from-Air Greenhouse Project was very active a bit over twenty years ago. The Viability Study reports produced for the Canadian International Development Agency were second-to-none. In my opinion they remain a valuable collection of knowledge about how to establish a commercial water-from-air irrigated greenhouse on a small tropical island. Sadly, the necessary level of interest and funding never materialized so not even a pilot installation was built. Inertia from so many angles stifles innovation! In the proverbial alternate universe there would now be several WaterProducer-Greenhouse™ installations to help alleviate the water crises discussed in the article.
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This interesting article in EOS, published by the American Geophysical Union (AGU), has insights about the development and deployment of OTEC that are likely to apply also to water-producing greenhouse technologies.
I have the privilege of being accepted as one of the presenters during the Technical Sessions at the 23rd Annual Caribbean Water and Wastewater Association (CWWA) Conference and Exhibition scheduled for October 6-10, 2014 at Atlantis Resorts on Paradise Island, Bahamas. Here is the Abstract of my paper:
Regional droughts in the Caribbean are common. Water managers seeking solutions to water scarcity are often unfamiliar with the option of using water-from-air technology. Maps of the specific humidity composite mean for Junes and Decembers during the ten-year period 2004–2013 quantify the water-from-air resource demonstrating it is suitable for operation of water-from-air systems in Caribbean countries. Quantitative investigations by the author found droughts and long-term climate change do not appear to affect the magnitude of the Caribbean region’s water-from-air resource. Case studies include one for a proposed water-from-air commercial greenhouse on Grand Turk. Another case is about the experience of commissioning a 2500 L/d water-from-air machine in Belize City. Lessons learned from the case studies are outlined. |
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AuthorRoland Wahlgren is a Physical Geographer. He was scientific and technical consultant to the WaterProducer-Greenhouse™ Project while it was "live" as a CIDA-supported Viability Study during 2001-2003. Archives
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