How is oxygen 'sucked out' of our waterways?

A million fish have died in the Murray Darling basin, as oxygen levels plummet due to major algal blooms. Experts have warned we could see more mass deaths this week.

Tourist boom threatens Sri Lanka's golden beaches

Tourists have flocked back to Sri Lanka's palm-fringed beaches since a bloody civil war ended in 2009, but environmentalists warn unchecked development means some areas are now so polluted, swimming there is a health hazard.

Rio Olympic water badly polluted, even far offshore

Olympic sailor Erik Heil floated a novel idea to protect himself from the sewage-infested waters he and other athletes will compete in during next year's games: He'd wear plastic overalls and peel them off when he was safely ...

A safer way to deal with raw sewage in the developing world

In 2011, an engineering student came up with an idea to help people in the developing world deal with raw sewage. His goal was to use technology to help save lives by limiting people's exposure to the pathogens in human waste. ...

No plan B on Rio sailing as Brazil chases pollution target

Rio Olympics organizers say sailing and windsurfing events will not be switched from Guanabara Bay, a picturesque vista marred by pollution, despite apparent disagreement on the extent to which the venue can be cleaned up ...

Toxic river a bane to one in eight Argentines

Riachuelo, a densely populated river basin on the edge of Buenos Aires, is among the world's most polluted sites and has been targeted for clean-up after two centuries of stench.

Microbes strip power from poo

EPSRC-funded scientists have developed a process using microbes which removes the need to use electricity to process sewage at treatment plants. The microbes can also be used to produce large quantities of valuable hydrogen ...

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