Let’s Clean Slovenia in 2012 ( Slovenian : Očistimo Slovenijo 2012 ) Was a Slovenian environmental volunteer project Organized by the environmental organization Ecologists Without Borders with the goal of joining 250,000 people is 24 March 2012 and cleaning municipal waste from illegal Landfills in the country.  Cleaning of scattered garbage in urban areas was also organized. The project, a continuation of Let’s Clean Slovenia in One Day! carried out two years before, was inspired by the Estonian campaign Let’s Do It 2008and organized within the frame of the World Cleanup 2012 .
The work started in March 2011 and culminated in the all-Slovenian cleanup on 24 March 2012. Around 121,000 people applied to a few days before the event, with official support from almost all Slovene municipalities .  Data from the inventory of illegal landfills created in collaboration with Slovenian mapping service Geopedia was used in directing volunteers towards landfills.
Among the participants were the Slovenian Army , top Slovene politicians,  celebrities, and Rainer Nõlvak , the main motivator of the movement Let’s Do It! World .  President of Slovenia Danilo Türk acted as an honorary patron,  and the folk-rock musician Vlado Kreslin responded to a request for a new song for the occasion which became the official hymn of the event. 
The World Cleanup 2012 initiative, which was started on that day by Portugal and Slovenia, will continue with clean-up actions in over 80 countries until September 2012.  Over 270,000 people or 12% of the population participated in Slovenia.  5000 tones of waste were picked up. 
- Let’s Clean Slovenia in One Day!
- Jump up^ “Let’s Clean Slovenia 2012” . Slovenia Times . 2012-03-23 . Retrieved 2012-03-26 .
- Jump up^ Mausar, Ana (2012-03-21). “Matches: Akcije Očistimo Slovenijo do bo nikoli več” [ Matches : Let’s Clean Slovenia will never be repeated again]. MMC RTV-SLO (in Slovenian) . Retrieved 2012-03-26 .
- Jump up^ “V il il il k k k k k k….. [[[[[[[[[[[[[[[[[[[[[[[[[. 24ur.com (in Slovenian). 2012-03-24 . Retrieved 2012-03-27 .
- Jump up^ “Akcija Očistimo Slovenijo združila več kot 230.000 prostovoljcev” [The Let’s Clean Slovenia action joined over 230,000 volunteers]. SiOL.net (in Slovenian). 2012-03-24 . Retrieved 2012-03-26 .
- ^ Jump up to:a b “230,000 prostovoljcev: Naleteli na topovske garnet, televizorje, odpadke iz klavnic …” [230,000 volontaires: They found artillery shells, TV-sets, slaughterhouse waste ….]. Dnevnik (in Slovenian). 2012-03-24 . Retrieved 2012-03-26 .
- Jump up^ “Do akcije Očistimo Slovenijo 2012 še trije tedni” [Three weeks remain until the Let’s Clean Slovenia 2012 action]. Slovenian Press Agency . 2012-03-04 . Retrieved 2012-03-26 .
- Jump up^ “Positive Kreslin skladbo za akcijo Očistimo Slovenijo” [Kreslin recorded a song for the Let’s Clean Slovenia action]. Delo (in Slovenian). 2012-03-10 . Retrieved 2012-03-26 .
- Jump up^ “Očistimo Slovenijo 2012:” Pokízali smo, da znamo biti odgovorni državljani ” ” [Let’s Clean Slovenia 2012: “We have shown that we can be responsible citizens”] (in Slovenian). RTV Slovenija. 5 April 2012.
- Jump up^ “Pobrali približno 5000 ton odpadkov” [Approximately 5000 Tons of Waste Picked Up]. 24ur.com (in Slovenian). 5 April 2012.