Will Chile put lights out on that dam project?

Environmentalists in Chile are celebrating after a new twist in the hydroelectric dam saga that has dragged on in its pristine Patagonia.

Patagonia is home to breathtaking nature — including two rivers that companies plan to dam up and use to generate electricity to satisfy the South American country's rising energy needs.

Environmental and social groups have campaigned hard against the project, claiming it would carve up one of the world's last great wildernesses.