http://www.uncsd2012.org/
http://www.un.org/esa/dsd/index.shtml
RIO+20-Conferentie : van 20/06 tot 22/06/12
Brochure RIO+20
http://www.uncsd2012.org/rio20/content/documents/Rio20Brochure.pdf
Video by Government of Brazil
http://www.youtube.com/watch?v=q6ZsQX_b4NY
Newsletter - Rio+20: Making it Happen
http://www.uncsd2012.org/rio20/?menu=40
MO*rubriek : RIO+20
http://staging-mo.coworks.net/dossiers/rio20
