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Short Wave

These voicemails save lives

20 Apr 2026

Transcription

Chapter 1: What challenges do residents of Prek Touch face due to climate change?

0.031 - 23.466 Brittany Luce

This year, for the first time in NPR's history, public media is operating without federal funding. That means NPR needs your support now more than ever. I'm Brittany Luce from It's Been a Minute. Please do your part to keep independent, reliable news coverage strong and support the podcasts that get you through the day by making a gift for public media giving days. Head over to donate.npr.org.

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24.928 - 28.654 Brittany Luce

You're listening to Shortwave from NPR.

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29.984 - 41.782 Camilla Dominovsky

Hello, short wavers. I am NPR correspondent Camilla Dominovsky, filling in as host. And today we are going on a trip with Rebecca Herscher from NPR's Climate Desk. Hey, Becky.

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41.962 - 42.303 Rebecca Hersher

Hi.

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43.044 - 44.005 Camilla Dominovsky

So where are we headed?

44.546 - 51.837 Rebecca Hersher

We're going to Cambodia, specifically to the central Cambodian village of Prek Tush. It's right next to the Nikang River.

52.799 - 54.321 Camilla Dominovsky

And when were you there?

54.605 - 72.46 Rebecca Hersher

So I was there in December. I visited with an NPR team that included producer Ryan Kelman and interpreter Tat Odom. And we wanted to visit this particular place because of something kind of surprising that's happening there, something related to its location, which is right next to this massive river.

72.5 - 76.107 Camilla Dominovsky

The Mekong River, right? One of the biggest rivers in the world.

Chapter 2: How are voicemails used as a warning system in Cambodia?

508.97 - 512.494 Camilla Dominovsky

Yeah, and what did you find out? What's going on with the weather warnings in Cambodia?

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512.947 - 534.07 Rebecca Hersher

Well, they've made progress. So as of like a decade ago, there really wasn't any modern system for warning people about flooding in Cambodia. But that has been changing with the help of money from nonprofit groups and from the UN itself. Residents who used to get, you know, basically no warning about floods now get flood forecasts up to five days in advance, which is a huge upgrade.

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534.87 - 541.097 Rebecca Hersher

And people in riverside communities like Praktush, they get warnings now and they get them via voicemail.

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541.178 - 546.443 Camilla Dominovsky

Are we talking like a regular voicemail or is it something more high-tech?

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546.463 - 552.129 Rebecca Hersher

No, it's literally like a normal voicemail. But the message is a flood warning, not like a fun message from your friend.

552.649 - 565.562 Unknown

Here's an excerpt of one. This says there will be minor flooding that may affect your area in Thabong Khmum province.

565.582 - 576.384 Rebecca Hersher

And then it gives directions about how to evacuate. Anyone in the country can opt in to getting these warnings. You can also sign up to get text warnings on the popular messaging app Telegram.

577.325 - 586.039 Camilla Dominovsky

Okay. I have to say, I feel like most of the voicemails I have right now are spam messages. Does this actually work? Because I mostly ignore my inbox.

586.419 - 608.494 Rebecca Hersher

I had the same question. I was like, okay, voicemail. Like, great. But people really seem to take these warnings seriously. Like, before that terrible November flood hit Praktush... Klee Polly got a voicemail warning on her phone. And she says in the past, they might have sheltered in their homes when the water was rising and just hoped that the water wouldn't get too high.

Chapter 3: What scientific factors contribute to worsening flooding in Cambodia?

649.455 - 671.193 Rebecca Hersher

He does that every time there's a warning. And that's actually how 82-year-old Khar Sama and his wife found out. They announced it via loudspeaker, Samad told me. And then a neighbor gave the elderly couple a ride to the evacuation center. When the floodwaters went down, everyone went home. Residents said there was one fatality.

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671.493 - 681.747 Rebecca Hersher

It was a young child whose family lives on a boat, so they couldn't evacuate. By the time we visited town about a month after the flood, life in Praktish was back to normal.

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682.187 - 692.311 Camilla Dominovsky

Wow. Yeah. Does every town in Cambodia have this kind of warning system and the community-minded neighbors who make sure that everybody actually gets the warning?

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692.913 - 708.924 Rebecca Hersher

No. So Prechtush is a leader on this, and that's in part because it is so prone to flooding. It was a pilot site that got UN funding over the last three years to help local leaders make evacuation plans, you know, come up with that plan to plug your phone into your speaker and drive through town.

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709.545 - 716.901 Rebecca Hersher

But UN-affiliated agencies are planning to spend an additional $7.8 million to expand the work across the country.

717.033 - 723.083 Camilla Dominovsky

You know, it seems like this work has been pretty successful. So are there projects like this in other countries too?

723.203 - 732.558 Rebecca Hersher

Yeah, for sure. Dozens of countries around the world have similar initiatives. Cambodia is just an example of a place where the benefits are already tangible, at least on a relatively small scale.

733.339 - 750.073 Camilla Dominovsky

And definitely not to discount those benefits. It sounds like a lot of lives were saved here. But just listening to you describe the experiences of people in Praktush, I'm also thinking about what wasn't saved, what is still washed away.

750.173 - 771.688 Rebecca Hersher

Yeah, absolutely. That came up in so many of the conversations I had in Praktush and also in other flood-prone parts of Cambodia. And particularly with people who live in places that are mostly reliant on farming as opposed to fishing. You know, floods are washing away their seeds, they're destroying crops at an absolutely huge scale.

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