Chaque année, 11 millions de tonnes de plastique entrent dans l'océan. Cinq immenses gyres de déchets — le plus grand étant le Great Pacific Garbage Patch, trois fois la taille de la France — dérivent dans les courants océaniques, concentrant les débris en soupes toxiques. Les microplastiques ont été retrouvés dans les fosses océaniques les plus profondes, la glace arctique, et le placenta humain.
| Donnée | Valeur |
|--------|--------|
| Plastique dans l'océan | 150 millions de tonnes |
| Entrée annuelle | 11 M tonnes/an |
| Zones mortes (hypoxie) | 700+ |
| Récifs coralliens en danger | 75% d'ici 2050 |
| Espèces marines affectées | 800+ |
Le problème source : 80% du plastique océanique vient de la terre (rivières, décharges, ruissellement). 20% vient de la mer (filets fantômes, déversements).
L'urgence : les récifs coralliens, qui abritent 25% de la vie marine, blanchissent à +1,5°C. À +2°C, 99% meurent. Sans intervention, l'océan perd son écosystème fondateur.
Un effort mondial coordonné combinant retrait des déchets, réduction à la source, et restauration des récifs coralliens — propulsé par l'action citoyenne à tous les niveaux.
Retrait des déchets — Nettoyages côtiers organisés, systèmes d'interception fluviale (stopper le plastique avant la mer), et soutien aux navires de nettoyage océanique.
Réduction à la source — Audit des marques (identifier les plus gros pollueurs), éducation communautaire, et plaidoyer politique local.
Restauration des récifs — Jardins de corail (bouturage sous-marin), suivi de santé récifale, et protection des zones de reproduction marine.
Résultat certain : chaque action a un seuil de participants. Quand le seuil est atteint, l'action démarre. Mécanique et mesurable.
Start with coastal communities in 30 countries, prioritizing areas near garbage patch accumulation zones and reef systems.
Recruitment:
- Scuba diving communities (coral planting)
- Surfing and beach communities (cleanups)
- Marine biology students and researchers (monitoring)
- Fishing communities (river interception, source tracking)
- School environmental clubs (education and local cleanups)
- Kayak/paddleboard communities (waterway cleanups)
Growth: every cleanup generates data → data reveals top polluters → targeted campaigns → policy change → less waste → healthier reefs → more divers join restoration.
Organize 1 cleanup per month in your area (beach, river bank, mangrove, port). Minimum 10 participants. Document all waste with the standardized brand audit protocol: count, categorize, photograph top 10 brands found.
Threshold rationale: 5000 captains × 1 cleanup/month × 10 participants = 50,000 people cleaning monthly, removing an estimated 500 tons of waste per year from reaching the ocean.
Participation : 0 / 50000
Frequence : Recurrente - lundi
Echeance : 11/08/2026
Lieu : Lieu public
Competences requises : logistique, communication
Remuneration : non
Conduct monthly reef health surveys at an assigned site: coral cover percentage, bleaching signs, fish diversity count, water temperature. Submit data to the global monitoring dashboard.
Threshold rationale: 1000 monitors × 1 site each = 1000 permanently monitored reef sites worldwide, detecting bleaching events within days instead of months.
Participation : 0 / 8000
Frequence : Recurrente - lundi
Echeance : 28/07/2026
Lieu : Lieu public
Competences requises : communication, juridique
Remuneration : non
Develop the open-source platform: reef health dashboard, cleanup mapping tool, brand audit database, acoustic monitoring integration, and coral nursery management system.
Threshold rationale: 40 developers — critical prerequisite for data collection, visualization, and coordination across the network.
Participation : 0 / 500
Frequence : Continue, toute l'annee
Echeance : 24/07/2026
Lieu : En ligne
Competences requises : informatique
Remuneration : non
After each cleanup, catalog and photograph every piece of branded waste. Upload data to the global brand audit database. This evidence is used to hold corporations accountable for ocean-bound plastic.
Threshold rationale: 3000 auditors generating verified brand data from cleanups in 50+ countries creates irrefutable evidence for policy campaigns.
Participation : 0 / 10000
Frequence : Recurrente - lundi
Echeance : 26/07/2026
Lieu : Lieu public
Competences requises : enseignement, photo-video
Remuneration : non
Deliver 2 ocean literacy sessions per month: school visits, community workshops, social media content. Cover plastic pollution, coral reef ecology, sustainable seafood, and individual action steps.
Threshold rationale: 2000 educators × 2 sessions × 20 people = 80,000 people reached monthly. Awareness drives recruitment to cleanup and restoration actions.
Participation : 0 / 5000
Frequence : Recurrente - lundi
Echeance : 24/08/2026
Lieu : Lieu public
Competences requises : enseignement, construction
Remuneration : non
Build and deploy low-cost plastic interception devices in rivers, drainage canals, and stormwater outlets near your community. Prevent plastic from reaching the ocean by catching it upstream.
Threshold rationale: 500 interceptors × 1 device each on major waterways = significant reduction in ocean-bound plastic. 80% of ocean plastic comes from 1000 rivers worldwide.
Participation : 0 / 5000
Frequence : Continue, toute l'annee
Echeance : 25/07/2026
Lieu : Lieu public
Competences requises : jardinage, construction
Remuneration : non
Maintain a coral nursery (underwater frame or land-based tank) and plant 50 coral fragments per year on degraded reef sites. Requires scuba certification for underwater nurseries, or participation in a land-based nursery program.
Threshold rationale: 2000 gardeners × 50 fragments/year = 100,000 new corals annually. Heat-resistant varieties can repopulate bleached reef sections within 3-5 years.
Participation : 0 / 3000
Frequence : Recurrente - lundi
Echeance : 08/08/2026
Lieu : Lieu public
Competences requises : jardinage
Remuneration : non