[5] In 2008-2009 he took part in a scientific expedition called La Planète Revisitée organized jointly by the Muséum national d'histoire naturelle in Paris and the Institut de recherche pour le développement (IRD) for inventorying threatened species in biodiversity hotspots in Mozambique and Madagascar.
[10] Since 2022 he has been an associate researcher at the Civil Societies, Urban and Territorial Transitions in the Mediterranean Chair.https://www.chaire-mediterranee-transitions.fr/ Olivier Dubuquoy is intent on exposing the lobbying and disinformation practices encountered in the alumina production sector, the recyclers of hazardous wastes and the oil and gas industry.
[12][13] As a whistleblower, Olivier Dubuquoy in 2011 unveiled a confidential impact assessment commissioned in 1993 by the late Pechiney conglomerate and acknowledging the high toxicity of the red sludge laden with heavy metals produced by its alumina plant at Gardanne, Bouches-du-Rhône.
[30] In 2013 and 2014, he led the battle against the Abyssea corporation and its Centre d’essais et d’expertise en mer profonde (Ceemp), a global testing platform for accelerating the exploration and exploitation of hydrocarbons in deep water that was to have been erected off the île du Levant, right in the midst of the Pelagos Sanctuary for Mediterranean Marine Mammals.
[33] On October 17, 2015, at La Seyne-sur-Mer, Olivier Dubuquoy, along with José Bové and Canadian environmental activist Paul Watson and agroecology pioneer Pierre Rabhi, co-founded the Nation Océan grassroots movement,[34] based on the "Déclaration universelle de l'océan" (DUO)[35] demanding for oceans to be considered a "common".
[37] In 2016, Olivier Dubuquoy took part in the non-violent blockading of the Marine Construction and Engineering Deepwater Development (MCEDD) oil and gas summit at Pau, Pyrénées-Atlantiques,[38][39][40] whose object was to accelerate the exploration and exploitation of hydrocarbons in deep water.