Global: Large dams 'unsustainable'

Numerous non-governmental organisations used the World Water Forum (WWF) held in Marseille as an opportunity to remind the international community about the serious global impacts of large dams all over the world. Defined as dams higher than 15 metres or with a reservoir volume of at least three million cubic metres, large dams number no less than 48,000 worldwide and present numerous issues, not least of which is a considerably negative impact on the livelihoods of local populations.