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== Footnotes ==
<references /><br><br><br>  [[Category:Appropriate_technology]]&nbsp;&nbsp;&nbsp;[[Category:Built_environment]]&nbsp;&nbsp; [[Category:Green_living]]&nbsp;&nbsp; [[Category:Energy_conservation]]&nbsp;&nbsp; [[Category:International_development]]&nbsp;&nbsp; [[Category:Taking_action]]&nbsp;&nbsp; [[Category:Design]]&nbsp;&nbsp; [[Category:CMAS801]]
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