Electricity sparks new life into Indonesia's corals

Cyanide fishing and rising water temperatures had decimated corals off Bali until a diver inspired by a German scientist's pioneering work on organic architecture helped develop a project now replicated worldwide.

Will dams on Amazon tributary wreak global havoc?

The Xingu River, the largest tributary of the Amazon, runs wide and swift this time of year. Its turquoise waters are home to some 600 species of fish, including several not found anywhere else on the planet. A thick emerald ...

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