In the 80s on UK’s Channel 4, there was a series of four films, Oceanus Ecumenicus, that talked about mining ocean floor nodules, Ocean Thermal Energy (OTEC), S

In the 80s on UK’s Channel 4, there was a series of four films, Oceanus Ecumenicus, that talked about mining ocean floor nodules, Ocean Thermal Energy (OTEC), Saudi Arabia mining silver from the bottom of the Red Sea, I can’t remember what the fourth one was but since the series was sponsored by British Gas I could make a guess. I’d love to see that again, but it doesn’t seem to have found it’s way to YouTube yet.