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Remarks

Gennaro criticizes inconsistent sea-level rise projections

New York City Council · Sep 30, 2026 · starts 0:07:04 · 3 min 52 sec

Gennaro digresses on conflicting state sea-level estimates from Columbia and Stony Brook, arguing that two sets of books undermine public confidence in climate science. He says preparation is still necessary despite uncertainty.

James F. Gennaro

And you're going to go off on a tangent for a minute.

James F. Gennaro

And therein lies, you know, some of the people who criticize climate change and don't believe in it, don't, you know, they don't know, you know, they don't have confidence in it.

James F. Gennaro

Back when I was working for the state as the...

James F. Gennaro

DEP, as the DE, the state DEC deputy commissioner, we were, for our purposes in DEC, using

James F. Gennaro

numbers for sea level projections that were projected by Columbia.

James F. Gennaro

And the governor's office of storm recovery were using numbers that were generated by my alma mater,

James F. Gennaro

Stony Brook University, their department of marine, oh God, senior moment, department of

James F. Gennaro

SOMAS, School of Marine and Atmospheric Sciences.

James F. Gennaro

And, you know, they're high-end estimates for sea level rise by X date, whatever it was, or half of what the Columbia projections were.

James F. Gennaro

And so I raised the point.

James F. Gennaro

With the commission of DEC and state government at large, people see state government as kind of like one entity, and we have two sets of books for sea level rise.

James F. Gennaro

So if you're at the governor's office of storm recovery, you're seeing the high-end estimate of like X, and if you look at Columbia's number, the high-end estimate was 2X.

James F. Gennaro

And so...

James F. Gennaro

We shouldn't have two sets of books, and this is why people lose confidence in climate forecasting and sea level rise projections.

James F. Gennaro

Because they're like personalities of...

James F. Gennaro

You know, the one who was doing it at Stony Brook was a, he was a Nobel laureate.

James F. Gennaro

And he's very strict in terms of we don't know something until we know it.

James F. Gennaro

And so if we don't know it, it's not going in the calculus for the projections.

James F. Gennaro

We could be wrong.

James F. Gennaro

We can end up, there could be things that we don't know, factors that we don't really, that we think are out there, but we haven't really studied them enough that, like, they're not going in the projection.

James F. Gennaro

So we're going to be conservative.

James F. Gennaro

And whereas some other entities are like, well, you have to build in a little bit of a fudge factor because nature always has something out there that we don't yet know.

James F. Gennaro

So let's use the Ouija board and try to...

James F. Gennaro

Fit it in somehow to account in our current projections that which we don't fully know yet.

James F. Gennaro

And so as a scientist, it's always like kind of annoyed me.

James F. Gennaro

And so that's two minutes of your life you can't get back.

James F. Gennaro

Sorry, but hopefully it was enriching about climate science and why people sometimes poke at it, because that's exactly the thing people would say.

James F. Gennaro

New York State's got two sets of books on like what climate, on what sea level rise projections are.

James F. Gennaro

You know, one of them has got to be wrong, probably both of them.

James F. Gennaro

And so that doesn't mean we shouldn't endeavor to figure it out.

James F. Gennaro

It doesn't mean we shouldn't try to prepare for it.

James F. Gennaro

But these are some of the frustrations when you're dealing with people who don't want to even recognize climate change and sea level rise as a thing.

James F. Gennaro

This is fodder for them to throw in our face, and I don't like to serve up things that people are going to throw in our face.

James F. Gennaro

That's three minutes you can't get back.

James F. Gennaro

And so...

James F. Gennaro

Where were we?