On the outskirts of Shenzhen, over 3, 000 people blocked a highway and surrounded government offices after hundreds fall ill from foul air emitted from a sewage plant, according to Hong Kong's Oriental Daily News.

BBC: China media: Political models

The site, on the banks of the Humber Estuary at Salt End already has a big chemical processor, a power station and a sewage treatment plant.

BBC: Yorkshire and Lincolnshire: Waste disposal

The results include a common sewage-treatment plant in Gubin, and a school in Guben where classes are taught in both German and Polish.

ECONOMIST: The German-Polish border

While the swim might seem likely to get cut, Korff cited a 2011 fire at a sewage-treatment plant that led to millions of gallons of waste flowing into the Hudson.

WSJ: Sewage Puts Ironman Swim in Doubt

Add in legal and institutional barriers (Germany is a federal state, Poland a centralised one, something that almost killed the sewage plant), and the road to a common future for the two cities looks bumpy.

ECONOMIST: The German-Polish border

Other times the attacks are more personal:In 2000 a discontented consultant, rejected for a job at a water treatment plant in Australia, remotely hacked into a sewage treatment system and released 264, 000 gallons of raw sewage into rivers and parks.

FORBES: The Next Threat

Hell, Whitey Bulger would have been caught years earlier if the city fathers of Santa Monica had built a database of all its citizens and then sampled the effluence coming through its sewage treatment plant.

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Thus, the algae production plant should be placed in close mutual proximity with a power station and a sewage-works.

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