This is part two of a six-part series.

If you missed episode one, go back and listen to it.

It'll give you a good sense of who these people are and what they're up against.

In today's episode, we're going to look at 2015 and what happened that year

to change these people's lives and their industry forever.

Previously, on Drove.

So what's happening now, lately, three out of the last four years,

we're asking these guys to sit around and either make no money or make hardly any money

during part-time jobs, but they have to be on call because we never know when the season is going to start.

So it's really hard for them to work during these closures

and our boats are sitting idle for three, four, five months at a time now.

When we left off, it was 2015 and a giant patch of warm water had just appeared off the Pacific coast.

It was huge and weird and scientists and locals were calling it quite ominously the blob.

A bell on, there's no stopping the blob as it spreads from town to town.

Maybe not quite as melodramatic as the 1958 movie by the same name, but pretty scary all the same.

Scientists, including several who actually worked for big oil,

had been predicting since the 1960s that warming oceans could shift the marine food web,

redistributing fish and plankton in ways that would cause various fisheries to wither and eventually crash.

In 1968, the American Petroleum Institute commissioned a study on the impacts of climate change from Stanford University.

In it, scientists warned that, quote, changes in ocean temperature would change the distribution of fish.

This is the story of two industries.

One fighting for its survival, the other the most powerful in human history,

...