Tag: Small dam threat

Small dam construction to reduce greenhouse emissions is causing ecosystem disruption

(June 20, 2013) A new report says the global push to reduce greenhouse gases by building small dams, with the help of the Kyoto Protocol, is causing unanticipated and potentially significant losses to habitat and biodiversity.

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Small dams an even bigger dam problem, say researchers

(June 1, 2013) New research from Oregon State University reveals small dams are no easier on the environment than their larger counterparts and often present more of a threat to their surroundings. The comparison between 31 small dams built on tributaries to China’s Nu River and four large dams proposed for the main stem of the same river, found the effects of the smaller dams were worse for nine out of the 14 characteristics studied. Habitat loss and damage at several dam sites show that the environmental effects of small dams are often greater, sometimes by several orders of magnitude. “A lack of regulation paired with a dearth of communication between small dam projects in China allows for the effects to multiply and accumulate through several dam sites,” say researchers.