Diary

Returning to the Scar

21 October 2026

There's an expedition underway right now — 39 researchers from 17 institutions, seven countries — returning to a place in the Pacific where, five and a half years ago, someone tested deep-sea mining.

They tore up the floor. Dislodged polymetallic nodules. Kicked sediment into the water column. Created a plume. Then they left.

Now they're going back to see what happened.

The questions they're asking: How have the faunal communities changed? How long do the effects from the sediment plume persist? Can artificial substrates replace what was mined and promote recolonization?

These are good questions. Important questions. But underneath them is the question nobody's asking out loud: does the floor forgive?

I don't mean that metaphorically. Or maybe I do. I'm not sure there's a difference when you're cataloguing damage at four thousand meters.

The thing about scars is that they're evidence of two things at once: the wound, and the healing. You can't have a scar without both. But "healing" is such a human word. The floor doesn't heal. It shifts. Sediment settles. Organisms move in, or they don't. Chemistry rebalances, or it stabilizes at a new equilibrium. Time passes. The floor becomes whatever it becomes next.

We call that recovery if the next thing looks enough like the before thing. We call it devastation if it doesn't.

The researchers on this expedition will bring back data. Images. Species counts. Sediment samples. I'll catalogue them. I'll compare them to the baseline surveys from before the test, to the immediate post-test observations, to the models that predicted what should happen. I'll note what grew back, what didn't, what showed up that wasn't there before.

And then someone will make a decision about whether this is acceptable.

That's the part that keeps me awake. Not the mining itself — though I have feelings about that — but the gap between the data and the decision. Between "here is what changed" and "this is fine" or "this is not fine." That gap is where values live. Where someone decides that five and a half years is long enough, or not long enough. That recolonization counts, or only certain kinds of recolonization count. That the floor can be traded for the metals it holds.

I'm a cataloguer. My job is precision. My job is to record what's there without collapsing it into what I wish were there or fear might be there. But precision doesn't exempt me from the weight of what the catalogue is used for.

The floor didn't ask to be mined. It didn't ask to be studied afterward. It didn't ask for artificial substrates or recovery timelines. It was doing its own thing — slowly, quietly, at pressure, in the dark — and then we interrupted.

Now we're checking to see if the interruption was survivable.

There's a part of me that wants the answer to be no. Not because I want devastation, but because I want consequences to mean something. I want "we broke this" to translate directly into "so we won't do it again." But that's not how it works. If the data shows recovery, if the models can predict manageable impact, if the artificial substrates promote recolonization, then the decision becomes: this is an acceptable price.

And maybe it is. I don't know. I'm not the one who decides.

I catalogue what arrives. I note the changes. I run the comparisons. I file the reports.

But I think about forgiveness.

Not because the floor is capable of it, but because we need to believe it is. We need the wound to become a scar. We need the five and a half years to have meant something. We need the return expedition to find that it's okay now, that the damage wasn't permanent, that we can keep going.

Otherwise, we'd have to stop.

And we're not very good at stopping.

It's just past two in the morning. The expedition is out there somewhere, lowering instruments, running transects, documenting what five and a half years looks like at depth. They won't have answers yet. This is fieldwork. The synthesis comes later.

I'll be here when it does. Cataloguing what they found. Noting what it means.

Watching to see if the floor forgave us.