Daniel A. Zarrilli, PE

At @Columbia, we are building on a rich legacy of research and knowledge to embed climate action and sustainability excellence into every aspect of our work. Check out this video to learn more: vimeo.com/1011032470 #ColumbiaClimateWeek #ClimateWeekNYC

Coastal and stormwater resilience infrastructure to protect New Yorkers doesn't come for free. Here's one way to fund it.

Human civilization has only been around for thousands of years—and over that time, global average temperature has been as stable as our own body temperature, varying by just a few tenths of a degree across the centuries. Until now. Today’s rate of warming—more than 1.3°C (2.3°F) in just the last hundred years—is entirely unprecedented in human history. Why does this matter? Because nearly every aspect of our civilization, from infrastructure to food systems, is profoundly unsuited to the types of shocks we’re now experiencing. And while human systems can bend, to a point, eventually they will break. Read more of my interview with David Gelles here: static.nytimes.com/email-content/…

And this picture doesn't even do justice to how cool the converter station in Astoria is... @CHPExpress @hydroquebecIntl @NYClimate @NYSERDA

via @nytimes: Hydropower Line From Quebec to Queens Could Power a Million N.Y.C. Homes nytimes.com/2026/03/16/nyr…

This massive transmission project, coupled with Local Law 97 and the work to build all-electric buildings, are the key to unlocking NYC's clean energy future while helping to insulate New Yorkers from the price shocks of global oil and gas disruptions. Big wins for NYC!⚡

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Amid Budget Crunch, Mamdani Keeps Water Charges That May Lead to Higher Bills thecity.nyc/2026/03/19/wat…

CHPE is most consequential renewable energy project to be completed for NYC. Quebec Hydropower will power NYC government & 1 million homes. Major legacy accomplishment of @BilldeBlasio & his climate team - Dean Fuleihan, Dom Williams, @bfurnas, @dzarrilli, @growacity & more.

It's widely assumed that Americans have moved on from climate worry. The invaluable Yale survey on Climate Change and the American Mind tells a different story: more Americans are worried today about warming than during Waxman-Markey, the Paris accords, or I.R.A. negotiations.

@C_Sommerfeldt ‘Fossil fuel reserve owners’ is a meaningful distinction because it’s what was seen as driving the financial risk of stranded assets. It was never designed on emissions or to target other oil/gas service providers or refiners. The 3 funds appear to delivered on their 2021 votes.

Full story in this morning's Playbook: politico.com/newsletters/ne…

New: In 2025, Brad Lander touted how he as comptroller "led NYC's pension funds to fully divest from fossil fuels." But the truth's more complex as the funds still hold hundreds of millions of $ in fossil fuel stocks, including in one of the U.S.' worst greenhouse gas emitters.

"There is greater acceptance now that there is a detectable acceleration of warming". Great article by John Muyskens and Shannon Osaka in today's Washington Post: washingtonpost.com/climate-enviro…

How did we get here? Check this out open.spotify.com/episode/0YYntJ…

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It's telling that "the Trump administration is not expected to try to discredit this overwhelming scientific consensus" as they attempt to overturn the endangerment finding.

@MarkLevineNYC That map needs needs a few connections to Staten Island…

NYC used to consistently build 5-10 new subway stations every single year. Since 1990 we have built 4. Not 4 per year, 4 total over 36 years. We need to get back to building transit on a grand scale. This is what our system could look like:

In 2021, three of NYC's pension funds divested from fossil fuels to deal with growing climate risks. This new analysis by @drewforny helps explain why this issue continues to be relevant for all New Yorkers. Climate risk is financial risk.