The Living Machine works by mimicking one of nature's most productive ecosystems: tidal marshes.
Then come rivers, marshes, accidents, bad roads, which are so many difficulties to be surmounted.
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Dr Iris Moeller of Cambridge University and her colleagues, study those often-forgotten features of our coastline, the salt marshes.
Oddly enough, at Nickerson, sand dunes and salt marshes are nowhere to be found, let alone an ocean beach.
Skis and snowshoes were first invented to cross wetlands and marshes in the winter when they froze over.
Asadi's boat glides through the gap in the dike that brought the first water back into the marshes.
The Conservancy owns or has easements on 50, 000 acres of barrier islands and salt marshes on Virginia's eastern shore.
The coastal marshes are home to abundant and various animal life, as well as sizeable fishing and tourism industries.
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The marshes no longer provide as much protection from storm surges from the Gulf of Mexico as they once did.
Marshes produce more biomass even than tropical rainforests because flow of the tides allows two different types of bacteria to flourish.
On their walls, the courtier celebrated his life, from hunting in the marshes to listening to his daughter play the harp.
Amid the bayous and marshes near the Gulf of Mexico, trawling for shrimp has been a way of life for generations.
The site in question is derelict industrial land bordering Rainham Marshes, close to the route of the proposed Channel Tunnel rail link.
The point is not to have it accumulate on the surface and allow it to spread either onto beaches or into marshes.
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If spending on defences remains limited, and the scenarios for sea-level rise through climate change prove correct, conservation of the marshes may acquire more urgency.
They are saying that as sea levels rise then the salt marshes will continue to grow thus absorbing and sequestrating more carbon.
It is not caused by nameless "developers" building strip malls in marshes.
Iraq's oil-rich marshes near the border with Iran are a particular flashpoint.
Work has been taking place to protect tidal salt marshes on the banks of the Severn Estuary from the impact of climate change.
BBC: Work carried out to protect Severn Estuary salt marshes
It hopes to recruit more local farmers to turn their riverside land back into salt marshes, which can still be used for grazing.
BBC: Work carried out to protect Severn Estuary salt marshes
The Suffolk Wildlife Trust began introducing fen raft spiders, which had been bred in captivity, to Castle Marshes reserve near Beccles in 2010.
They are raised in cages that float in dirty marshes in the Mekong river or so says Marion Berry, a Democratic congressmen from Arkansas.
Migrating peregrine falcons traveling north from South American wintering areas, destined for nesting areas as far as Greenland, are also crossing the Gulf's marshes.
As the oil infiltrates the marshes and lagoons of the coast, it will become far more difficult to disperse and will affect delicate ecosystems.
Another outbreak of the weed caused extensive damage to a number of important wetland habitats, including Exminster Marshes in Devon, earlier in the year.
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It's also due to the Corps allowing oil companies to dredge shipping channels through the wetlands, thereby encouraging saltwater intrusion, which kills the marshes.
Fresh, green grass has begun growing again in some of the hardest-hit marshes of southern Louisiana, but oil continues to wash ashore in places.
She underlined the role of salt marshes, mangroves and tidal marshes in carbon sequestration, noting their carbon capacity exceeds that of many other terrestrial habitats.
Areas with salt-marshes like south-east Kent would be the most vulnerable.
But proponents, including Louisiana Gov. Bobby Jindal, say oil caught by those islands will be far easier to clean up than oil that gets stuck in marshes.
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