In our globally connected lives, the companies that make the technology we rely on every day

can run headlong into traditional cultures and the environment that sustains them.

Last night, we featured a new potentially lucrative

industry deep sea mining. Tonight videographer Edward Kiernan and special

correspondent Villa Marks returned to Papa New Guinea and the Bismarck Sea where locals are fighting back to preserve

a vanishing way of life.

Rodney Kadog has been prepping bait like this since he was a teenager when he first ventured out alone in a canoe.

Fishing far out at sea or on reefs closer to shore has sustained Papine Guinea's coastal communities for centuries.

Like many local kids, Rodney started catching fish around age six.

He later moved to this village called Konao to get married.

Its shoreline on an island named New Island has been his home ever since

and fishing remains his primary job.

It can help us with our families.

It generates financial income which supports us

as well as sustains our livelihood in our village.

Fish is good.

Fishing helps feed his kids, and if he ever trades or sells his catch, it helps fun their

other needs too. But the bites don't come as often as they once did, perhaps due to a growing

population or the changing climate he's not sure. When I was younger it was a lot

faster. As soon as we cast our lines we would bring in a lot of fish

Compared to now when fish are scarce today. It takes a long time for us to catch one fish

Broadney often paddles out rapidly past the island's reef break,

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