LEMON: In the Panama mountains a story of death and survival. A plane crash kills this California man and his 13-year-old daughter. Now the teenager is rescued. Hear what her mother just told us live, right here on CNN.</s>DAN RIVERS, CNN CORRESPONDENT, (voice over): We've come to Pamuto Lang (ph) beach on the remote north coast of Bali, to scuba dive on a remarkable project. Under these sparkling waters, there is a reef teeming with fish and coral. But what's amazing is this whole underwater ecosystem has been rebuilt using some very clever technology called biorock. A few years ago, huge steel frames were lowered into the shallow waters where the natural reef was damaged beyond repair. Then coral that was about to die was grafted on to these structures.</s>TOM GOREAU, PROJECT CO-FOUNDER: We swim around the reef and we look for naturally broken corals, things that are going to die. So we rescue those and we tie those on and we let them grow very fast.</s>RIVERS: And that's possible because of these wires. And this is the really clever part of the project. A small electrical current is fed under water to the metal structures. Nearby, other cables are linked to a titanium mesh, like this one on the seabed. It acts as an anode. And by the magic of electrolysis, when the current is switched on, limestone literally grows around the metal frames. But it also raises the coral's metabolism, protecting them from warming seas. As biorock grows, more coral grows, more fish are attracted, along with more ecotourists. Its structure costs just a few hundred dollars. If the project had serious funding, thousand more metal structures could be put in place. With rising sea temperatures from global warming, this might be the best way to stop them disappearing forever. Dan Rivers, CNN, Bali.
Underwater Ecosystem in Bali Uses Clever Technology