Marine scientist Syafyudin Yusuf is leading the efforts. Together, his team has restored 12 hectares of corals . Just 15 years ago, only 2% of the region’s original reefs remained undamaged. Local fishers used explosives and chemicals to stun or kill fish, making them easier to catch. "We needed to live and survive, but the chances of getting a decent job aren't good, and the only job we knew of was that, that's how we began bombing the reefs."