URL: http://www.postcarbon.org/report/44377-searching-for-a-miracle
Traducción al castellano (2012): http://www.resilience.org/stories/2012-02-22/en-busca-de-un-milagro-los-l%C3%ADmites-de-la-%E2%80%98energ%C3%AD-neta%E2%80%99-y-el-destino-de-la-socieda
