Khác biệt giữa bản sửa đổi của “Dấu chân sinh thái”

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*[http://lca.jrc.ec.europa.eu/lcainfohub/introduction.vm Life Cycle Assessment, introduction]
*[http://lca.jrc.ec.europa.eu/lcainfohub/directory.vm Independent directory of service providers, databases, tools for LCA/Carbon footprint and related]
*[http://www.bestfootforward.com Best Foot Forward ''Ecological Footprint experts'']
*[http://www.pe-international.com/international/services-solutions/environmental-footprint/ PE INTERNATIONAL ''White paper Environmental Footprint'']
*[http://www.worldchanging.com/archives/006904.html Ecological Footprint 2.0]
*[http://pthbb.org/natural/footprint/ Ecological Footprint Cartogram]
*[http://www.footprint-trust.co.uk/ UK charity specifically dedicated to sustainable development linked to ecological footprinting]
*[http://www.twentyten.net/ ''2010 Biodiversity Indicators Partnership'']
*[http://css.snre.umich.edu/css_doc/CSS08-08.pdf ''US Environmental Footprint Factsheet'']
 
*[http://www.2020vancouver.com/node/3 Interview with Bill Rees]
 
[[Thể loại:Sinh thái học]]