Pollutions marines

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Pollutions marines / microplastiques

Lns_arte_infographie_emission13_site_fr_1.png (700×1102) Idée reçue : "les continents plastiques n'existent pas" > Environnement. La croissance exponentielle de la population, la mondialisation et la croissance économique, engendrent des quantités de déchets considérables et selon François Galgani, chercheur à l'Ifremer, chaque année 4 milliards de tonnes de déchets sont produits dans le monde. « 80 à 120 tonnes de déchets chaque seconde qui, souvent finissent en mer. » Si l'on tient compte du fait que 80% des déchets marins viennent des continents, on comprend mieux l'ampleur du problème.

Idée reçue : "les continents plastiques n'existent pas" > Environnement

Ce sont en effet pour lui 450 à 500 000 tonnes de macro-déchets qui sont rejetées. Toujours selon ses estimations, 30 à 40.000 tonnes de micro-plastiques flottent sur l'océan mondial, réparties en 5 zones (gyres). Sur cette masse de déchets d'une très grande diversité, une part significative est constituée de plastiques qui viennent se déposer sur les plages, se dispersent en mer et se retrouvent sur les fonds marins. Entretien ECO-MER avec le professeur Alexandre MEINESZ - 1. Plastic to Oil Fantastic. Plastic to oil machine in action | Drift Surfing. A plastic to oil demonstration took place on February 11th at the Orella Stewardship Institute.

Plastic to oil machine in action | Drift Surfing

The take home is this technology is real and it works! We saw first-hand how you can take normal everyday plastic, from #2 to #7 including thin films wrappers. Put it in this cute little gizmo and voila! Out comes oil! ENergy Overview - Fullscreen. Pacific trash vortex showing drift of ocean pollution. European Commission - Environment - Water - Marine. Ec.europa.eu/environment/news/efe/pdf/FR-EFE42-110328.pdf. Jackson Browne: "If I Could Be Anywhere" Www.plasticseurope.org/documents/document/20110323115008-2011_03_23_joint_declaration.pdf. Global Plastics and Plastic Product Producers Take Action on Marine Litter.

As part of their overarching contribution to providing sustainable solutions, representatives of plastics organizations from around the globe have released a “Declaration for Solutions on Marine Litter.”

Global Plastics and Plastic Product Producers Take Action on Marine Litter

The declaration was announced at the 5th International Marine Debris Conference in Honolulu. As of January 2012, 54 world plastic organizations in 33 countries signed the pledge, which describes steps that the industries will take, and suggests approaches and platforms for global cooperation and future partnerships. Plastic Makers Commit to Global Collaboration on Marine Litter Solutions. The recycled port? An alternative to dumping at sea. In search of a sustainable alternative to dumping at sea or disposal on land, a Scandinavian consortium blended contaminated sediment with a special mix of binders to produce a safe construction material for use in ports and harbours.

The recycled port? An alternative to dumping at sea

Stricter regulations have reduced the use of hazardous chemicals and heavy metals in industrial activities, but their legacy lives on in the environment, notably in polluted soils and sediments. One sector where they present a particular headache is in the shipping and port industry, where dredging routinely turns up sediment contaminated with the likes of carcinogenic PCBs, TBT, cadmium, lead and mercury. Port owners are caught between constraints on dumping sediment at sea, the cheap but polluting option, and removing it to be treated for landfill, an expensive alternative. Le dessous des cartes - Plastiques dans les océans. Marine Research Foundation - Research - Pelagic Plastic.

Plastic in the ocean may be one of the most alarming of today's environmental stories.

Marine Research Foundation - Research - Pelagic Plastic

Plastic, like diamonds, are forever! Because plastics do NOT biodegrade, no naturally occurring organisms can break these polymers down. Instead, plastic goes through a process called photodegredation, where sunlight breaks down plastic into smaller and smaller pieces until there is only plastic dust. But always plastic remains a polymer. When plastic debris meets the sea it can remain for centuries causing untold havoc in ecosystems.