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  • International Geothermal Association
  • www.geothermal-energy.org
  • Information on geothermal energy in use around the world, world conferences on geothermal, and links to related web sites.
3.9
(si*)
<5
6
  • Geothermal Resources Council
  • www.geothermal.org
  • Encourages worldwide research and development on geothermal energy resources and utilization. Calendar of events, workshops, membership information, publications, related links and other information.
3.8
(si*)
-
6
3.8
(si*)
-
5
3.6
(si*)
-
4
3.5
(si*)
<5
6
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