The film introduces the main causes of coral reef destruction , coral bleaching , human exploration , practice to prevent coral reef destruction and coral artificial regeneration . We appeal and invite environmentalists from all over the world to participate in invironmental protection . They use their professional knowledge , experience and personal appeal to enhance human’s attention to marine protection by paying attention to the Great Barrier Reef , and work together to create a better world for the next generation . At the same time , we call on children to take responsibility to protet the ocean and the earth.