meet ken niedermayer. >> i grew up diving in the florida keys, and it was just the most magical placel reefs were so pretty and i decided that's what i wanted to do for a living is dive. the reefs provide protection for the coastal areas and recreational opportunities for millions of people. i was diving for 40 years and over time, i saw those coral reefs start to die. coral reefs worldwide are in decline. if they die completely, coastal communities would be bankrupt and tourism would be gone. a billion people in the world would be impacted. i started thinking how can we fix this problem? >> i'm ken niedermayer, i grow, protect and restore coral reefs. >> we developed a system that's simple and something we can train others to do. >> we start with a piece of coral this big and hang it on trees. after a year or two, it becomes this big. and then we cut the branches off and we do it again. >> ken's coral nursery is one of the largest in the caribbean. >> in 2003, we planted six corals here. and now there's over 3,000 growing in this area alone. >> before i felt helpless, watching it die

meet ken niedermayer. >> i grew up diving in the florida keys, and it was just the most magical placee so pretty, and i decided that's what i wanted to do for a living, is dive on coral reefs. in an area where there's live coral, there's always more fish. the reefs provide protection for our coastal areas and recreational opportunities for millions of people. i was diving for 40 years, and over time i saw those coral reefs start to die. coral reefs worldwide are in decline. if they died completely, coastal communities would be bankrupt and tourism would be virtual gli gone. a billion people in the world will be impacted. i started thinking how can we fix this problem? my name is ken neiedemayeniedem. he grow and protect coral reefs. we developed a system that's simple and something we can train others to do. we start with a piece of coral this big and hang it on the treats. after bn a year or two it becomes this big. then we cut the branching off and do it again. >> ken's coral nursery is one of the largest in the water caribbean. it's ten times larger than the others in existence. >>