Picco delle risorse
Picco del petrolio
Peak Oil News (inglese):
peakoil.com
Aspo Italia (italiano):
www.aspoitalia.it
Crude Oil Peak (inglese):
www.crudeoilpeak.info
Energy Bulletin (inglese):
http://www.resilience.org/stories-list/79716-energy
Picco del carbone
Energy Watch Group (inglese/tedesco):
www.energywatchgroup.org
Picco del fosforo
Articolo ASPO Italia (italiano):
aspoitalia.blogspot.com/2008/03/il-picco-dei-fosfati.html
Articolo il Post (italiano):
www.ilpost.it/2010/04/22/fosforo-necessario-finendo
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