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Tropical Small Islands

The WaterProducer-Greenhouse™ is a niche technology suited for tropical small islands having these characteristics:
  • Tropical, humid climate
  • Natural coolant (saline groundwater with reverse geothermal gradient)
  • Coastline within 1 km of the 200 m ocean depth contour  

Carbonate Islands with Natural Coolant Resources

This technical bulletin is a reconnaissance of carbonate small island sites in the humid tropics expected to have a natural coolant resource. The reverse geothermal gradient in saline groundwater could be tapped, by drilled wells (250–500 m deep), in a sustainable process, by Canadian Dew Technologies Inc.'s WaterProducer™ system for drinking water production.

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List of Small Island Developing States

List at UN-OHRLLS website

Alliance of Small Island States (AOSIS)

"Since 1990, AOSIS has represent the interests of the 39 small island and low-lying coastal developing states in international climate change, sustainable development negotiations and processes."

References about tropical small islands
(relevant to the WaterProducer-Greenhouse™ system; chronological order)

  • Falkland, A. C. (1993) Hydrology and water management on small tropical islands. Hydrology of Warm Humid Regions (Proceedings of the Yokohama Symposium, July 1993) IAHS Publ. no. 216, 1993
  • Pérez Monteagudo, F. and Miquel, M. F. (2000a) Water Resources Management in Grand Turk - Part 1. Water & Wastes Digest, December 28, 2000.
  • Pérez Monteagudo, F. and Miquel, M. F. (2000b) Water Resources Management in Grand Turk - Part 2. Water & Wastes Digest, December 28, 2000.
  • Mario, R. (2001) Ocean Thermal Energy Conversion and the Pacific Islands. South Pacific Applied Geoscience Commission (SOPAC) Miscellaneous Report 417.
  • Goodbody, I. and Thomas-Hope, E. editors (2002) Natural Resource Management for Sustainable Development in the Caribbean
  • National Report for Bahamas
  • Wahlgren, R. V. (2008) Water-producing greenhouses for small tropical islands: Ahead of their time or a timely solution? Proc. IW on Greenh. Environ. Control & Crop Prod. in Semi-Arid Regions, Eds.: C. Kubota and M. Kacira, Acta Hort. (ISHS) 797: 405–410.
  • Economic Commission for Latin America and the Caribbean (2011) An Assessment of the Economic Impact of Climate Change on the Water Sector in the Turks and Caicos Islands, 55 pages
  • Wahlgren, R. V. (2014, October) Another Water Resource for Caribbean Countries: Water-from-Air. Paper presented at the Caribbean Water & Wastewater Association, Twenty-Third Annual Water & Wastewater Conference and Exhibition, October 6–11, 2014, Atlantis, Paradise Island, Bahamas. Retrieved from https://s3.amazonaws.com/eventmobi-assets/eventsbyids/6712/documents/seminar/424180/Wahlgren,_R_11_Paper-WaterFromAir.pdf
  • ​Hunt, J.D., Zakeri, B., Nascimento, A. et al. (2020) High velocity seawater air-conditioning with thermal energy storage and its operation with intermittent renewable energies. Energy Efficiency 13, 1825–1840 (2020). https://doi.org/10.1007/s12053-020-09905-0
  • Peter, S. (2020). Worsening water crisis in the eastern Caribbean, Eos, 101, https://doi.org/10.1029/2020EO147278. Published on 22 July 2020.
  • Fraser, J. (2021). Climate change puts pressure on failing Caribbean water supplies. Deutsche Welle. Retrieved from https://www.dw.com/en/climate-change-puts-pressure-on-failing-caribbean-water-supplies/a-56306009
  • Betancourt, M. (2022). The Century-Old Renewable You've Never Heard Of: Ocean thermal energy conversion could power the world's tropical islands, if it ever gets out of the "innovation valley of death." EOS, 24 January 2022.

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