LAURA JAMES:

I have been diving out here for almost 24 years, and people always ask me, do you see any big difference between now and when you started?

And I have seen some subtle differences, but this is the change of my lifetime. We have had now occasional die-offs here and there, but it's not like this. It's not a mass mortality event.

I'm just a diver. I need to find out what the scientists know.