A new interactive Google Earth video tour aims to teach people how damming rivers around the world can exacerbate climate change. The video, created by the nonprofit conservation groups International Rivers and Friends of the Earth International, is narrated by Nigerian environmental activist Nnimmo Bassey and will debut at the United Nations COP 17 Climate Change Conference in Durban, South Africa, this week.
"A lot of analyses of large dams have focused on their social and environmental impacts," said Zachary Hurwitz, policy coordinator for International Rivers. "In addition, greater attention needs to be paid to whether hydropower is a viable option in a warming climate," he said. The approximately 12-minute video uses computer animation to simulate the potential climate hazards associated with building dams in Africa, the Himalayas, and the Amazon. (...)

The article:
http://news.nationalgeographic.com/news/2011/11/111128-google-earth-dams/