We followed him on our motorbikes, passing dusty buildings with candy-coloured roofs and needling through the crowded streets stitched to the banks of the Bassac, one of three rivers that meet at the low-rise Cambodian capital.

BBC: Cambodia��s creepy-crawly cuisine

The three-year project is a new partnership between Rivers and Fisheries Trusts of Scotland (RAFTS), Scottish Wildlife Trust, the University of Aberdeen, Scottish Natural Heritage (SNH) and more than 16 other organisations.

BBC: American mink 'safe haven' project under way

The project would involve the building of five dams on two fast-flowing rivers that run into the Pacific - two on the river Baker, and three on the river Pascua.

BBC: Chile court rules in favour of Patagonia HidroAysen dam

The Environment Agency says rain and melting snow are expected to lead to rising water levels in rivers in south-west England and has three flood warnings in place.

BBC: Snow continues to grip parts of UK

The treaty, which has survived three wars, details exactly how each side must use cross-border rivers.

ECONOMIST: South Asia��s water

They are widely regarded as a world-class natural attraction containing marvellous stream passages formed by three rivers that sink underground on the slopes of Cuilcagh Mountain.

UNESCO: Olympic torch carried through iconic Geopark

Martin McGuinn, who took over as chief executive two years ago, is a lawyer by training and oblivious to banker's hours: He's gazing over Pittsburgh from his top-floor office by 5:30 every morning, when the three sprawling rivers below are still black as the coal buried deep in the surrounding hills.

FORBES: Pittsburgh Panther