Lethal Seas
- Episode aired May 13, 2015
- TV-PG
- 54m
How carbon emissions are impacting the world's oceans. Included: a coral garden in Papua New Guinea that could offer a preview of what the seas will be like in a half-century.How carbon emissions are impacting the world's oceans. Included: a coral garden in Papua New Guinea that could offer a preview of what the seas will be like in a half-century.How carbon emissions are impacting the world's oceans. Included: a coral garden in Papua New Guinea that could offer a preview of what the seas will be like in a half-century.