http://www.dailymail.co.uk/pages/live/articles/news/news.html?in_article_id=534190&in_page_id=1770&ct=5
http://www.backyardaquaponics.com/
http://www.solare-bruecke.org/infoartikel/Papers_%20from_SCI_Conference_2006/21_wolfgang_scheffler.pdf
http://www.tinytechindia.com/renewableenergy.htm
http://www.solare-bruecke.org/projekte-Dateien/solarfridge.html
Algae bio-diesel
http://www.worldometers.info/
solar oven/cooler
http://solarcooking.org/plans/funnel.htm
battery
Sodium/ion battery - http://entropyproduction.blogspot.com/2007/10/sodium-ion-batteries.html
Peak lithium - http://www.evworld.com/article.cfm?storyid=1182
http://www.backyardaquaponics.com/
http://www.solare-bruecke.org/infoartikel/Papers_%20from_SCI_Conference_2006/21_wolfgang_scheffler.pdf
http://www.tinytechindia.com/renewableenergy.htm
http://www.solare-bruecke.org/projekte-Dateien/solarfridge.html
Algae bio-diesel
http://www.worldometers.info/
solar oven/cooler
http://solarcooking.org/plans/funnel.htm
battery
Sodium/ion battery - http://entropyproduction.blogspot.com/2007/10/sodium-ion-batteries.html
Peak lithium - http://www.evworld.com/article.cfm?storyid=1182