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Podcast Transcript July 18, 2025: From pinecones to predators: Wildfire tech and the misunderstood vulture
Episode Description:
This week on The Optimist Daily’s Weekly Round-up, Karissa and Arielle explore two unexpected environmental heroes: a pinecone-inspired wildfire sensor called Pyri, and the misunderstood but essential role of vultures in ecosystem health. Discover how design students in London are helping prevent devastating fires with biodegradable tech and how Bulgaria’s ambitious rewilding project is reviving Europe’s rarest vulture species. From the power of biomimicry to the hidden brilliance of “ugly” animals, this episode is a love letter to nature’s resilience and innovation.
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Transcript:
Theme music
Karissa
Hello and welcome to The Optimist Daily’s Weekly Roundup. I’m Karissa.
Arielle
And I’m Arielle, and we’re working hard to put solutions in view and optimism in movement.
Karissa
Well, welcome back. We are here again with another episode of the pod to share the solutions from Optimist Daily this week.
Arielle
Yes. And if you don’t have enough of us and you want some more solutions in your life, then definitely sign up for our daily newsletters so that you can get all of the solutions straight to your inbox.
Karissa
Yeah. And you can follow us on socials we are on basically everything. So go ahead and give us a follow and get solutions in your news feed.
Arielle
We are @OptimistDaily on everything except for X—that is @OdeToOptimism, O-D-E-T-O optimism. We also really, really, really appreciate financial support, so you can become an Emissary and find out how to do that on our website. But if money is tight, we totally get that, and non-financial support is equally as valuable. Sharing this pod with your loved ones, with friends, shooting an article off to someone—that would be a huge help for us.
Karissa
Absolutely. Let’s get into the solutions of the day. But first, Arielle, how are you doing?
Arielle
I’m doing pretty well, but I will say that there is something bothering me, so I’m going to go straight into my “I’m an Optimist, But…”
Karissa
Yeah, let’s hear it.
Arielle
OK, I’m an optimist, but I’ve been feeling really weird about what seems like a resurgence of ultra-thinness as the beauty ideal. I don’t know about you, but I’ve been noticing more and more online and on socials, people celebrating dramatic weight loss. And the term “heroin chic” keeps popping up again. And it’s like a little bit of a return… or a big return to skinny worship. It just feels like we’re sliding backwards. Have you noticed this as well?
Karissa
Uh, yeah, absolutely. I’ve definitely seen this online and like you’re saying, there’s a lot of, like, major weight loss celebrations with, you know, kind of a trend of weight loss medications like Ozempic and such. Yeah. And yeah, just like the heroin chic aesthetic, which shouldn’t be an aesthetic at all.
Arielle
It’s a horrible title for one as well. So unhealthy.
Karissa
Yeah. But I’ve noticed that as well, and it’s definitely made me feel… ugh.
Arielle
It’s disheartening to see people who might have been on the more voluptuous side, who were really at the forefront of body positivity or body neutrality, and they have also… you know, fallen into this skinny-worshipping beauty ideal. But what worries me even more than that is how quickly the beauty standard keeps shifting. Just when it felt like we were actually embracing body positivity—or at least leaning into body neutrality—suddenly we’re back to romanticizing extreme thinness. I… I don’t know. It’s dizzying and it’s exhausting. And I just think about me as a young girl. And I… I also grew up with these trends, and I internalized them as goals. And I think about the younger generation growing up now trying to figure out what’s quote-unquote beautiful when the rules are changing every year. So I’m an optimist, but this is bothering me. And as an antidote to that, I’ve revisited a couple Optimist Daily articles that offered a different way of looking at things. So, from body positivity—which does encourage you to love your body, which I also feel… I don’t know, a little bit mixed about because it feels like it’s so much pressure to force yourself to love your body in a society that has taught you to criticize it all the time—what I did really like was when we shifted into being at peace with your body. And that’s more the body neutrality thing, focusing on what your body does and not how it looks.
Karissa
Yeah.
Arielle
That I can get behind because realistically, there are days that I don’t feel particularly confident in my body. And yeah, I don’t like how I look necessarily, but I do appreciate it for carrying me through life and work and being strong when I need to.
Karissa
That’s such a great point, and especially in this society we’ve all grown up in. It’s just natural for us to criticize our bodies. So I totally get what you’re saying, Arielle, and I wish it wasn’t like that, but…
Arielle
Yeah. I mean, hopefully we can still create a space for people to just… exist without all this pressure. But even just talking about it does make me feel a little bit better. So do you have something that you want to get off your chest?
Karissa
Yeah. So I’m an optimist, but the wildfire smoke in the area where I live in the Central Valley of California—it’s making me very pessimistic for a number of reasons. One, it means there’s a wildfire going on. There’s one a little bit north of me, I know, in the Mount Shasta area. It’s wildfire season, of course, with everything being dry. So it’s really scary to think about. But I think something we don’t think about as much when it comes to these natural disasters… people in the direct line of fire are more affected and will have heavier weights to carry as they navigate going through the disaster and the aftermath, but people far away—like miles and miles away—can feel effects of things like wildfires because the smoke drifts down even further than the central point. Wildfire smoke… it makes me tired, for one, it makes the sky super gloomy and the air hard to breathe. You know, with climate change, the threat is rising so much here in California especially, and all over the world.
Arielle
Yeah… hopefully there’s a solution that we can turn to…
Karissa
Yeah. And I actually have a solution to share today that could help prevent wildfires.
Arielle
Yes, go for it.
Karissa
This solution really caught my eye and turned my pessimism into a little bit of optimism. My solution today is called Tiny fire detector inspired by nature could transform wildfire prevention. And early detection is becoming more crucial than ever. But advanced systems like satellites and thermal imaging are often too expensive for middle-of-nowhere regions.
So enter Pyri, which is a new low-cost, environmentally friendly wildfire detector—the size of a pine cone. And it’s also similar in appearance. It was developed by a team of design engineering graduates in London. Pyri blends simplicity, sustainability, and science together.
Arielle
How exactly do they make it and how does it work?
Karissa
Well, it’s primarily made from wax and charcoal composites, which are materials that blend seamlessly into the natural environment and leave virtually no footprint. Once they’re deployed in fire-prone areas, the sensors can sit undisturbed for years without maintenance. When they’re exposed to fire, internal heat-sensitive triggers melt, releasing a low-frequency signal that alerts authorities.
Arielle
This is amazing. Catching wildfires as early as possible is crucial for mitigating the damage.
Karissa
And it’s great because the inspiration for Pyri comes directly from nature itself. The name is actually derived from pyriscence, the scientific term for the way some species adapt to fire. Pine cones from certain trees, for instance, only release their seeds after high heat melts the resins sealing them shut. So the founders took inspiration from how nature already responds to fires to create their invention.
Arielle
I did not know that about pine cones, so that’s really interesting. But it’s also another reminder that sometimes inspiration from something so simple and so natural is the greatest solution.
Karissa
Yeah, for sure. And Pyri’s ribbed, pinecone-like structure isn’t just symbolic—it’s practical. It protects the sensor from impact, especially when dropped from the air over difficult terrain. So that’s pretty cool, because a pine cone itself is also pretty tough. And the team also wanted the devices to remain invisible to both people and wildlife.
Actually, the team said that they’ve already lost one in the wild, so they might be doing too well in terms of camouflage.
Arielle
That’s great. OK, so I know you mentioned a bit about how the device is environmentally friendly, but I’m thinking that sensors have to use some kind of battery, right? Is there a special technology they’re using to make sure the whole product is sustainable—especially if one of the devices gets lost again or even burned up in the fire?
Karissa
Yeah, so Pyri’s creators are committed to ensuring that their technology is safe for the environment. The team has avoided using rare earth metals and lithium-ion batteries in favor of organic electronics. And while the trigger technology remains confidential because it’s pending patent approval, the group is focused on ensuring that even when the device is burned, it won’t harm the surrounding ecosystem and will leave no trace.
Arielle
Huh. Brilliant! Wildfires move so quickly—it’s great that this device will sustainably and quickly catch the flames.
Karissa
Yeah. I mean, wildfires can spread at speeds of up to 14 mph, so it makes every moment critical.
Actually, according to a 2020 study by the Australian National University, even a one-hour reduction in response time could reduce large fire frequency by 16 percent. And other recent investments reflect this urgency. The Biden-Harris administration allocated $15 million for new fire weather observation systems, and Google pledged $13.1 million for its FireSat project, which will monitor wildfires via satellite.
But many under-resourced regions still lack access to high-tech tools or funding like this, so Pyri’s affordable and low-maintenance solution could help fill that gap.
Arielle
Yeah, we know all too well that affordable monitoring equipment is key to prepare for natural disasters. We saw that recently again with the tragic Texas flood, where…
Karissa
Mhmm.
Arielle
…there are discussions about how more flood warning equipment could have potentially saved more lives.
Karissa
As we face more threats from climate change, we need to adapt and work on having the best monitoring and warning systems in place. So I’m pretty optimistic about the work of Pyri.
Arielle
Yeah, me too. What’s in the future for Pyri? Is it ready for a large-scale rollout?
Karissa
Uh, well, not quite yet. But when it is, initial customers may include forestry, agriculture, and utility sectors in the U.S., though there is some interest that has come from abroad—so it could definitely be a worldwide solution.
And the startup also recently won a James Dyson Award…
Arielle
Nice.
Karissa
…and plans to launch small-scale pilot tests this year, with a commercial rollout targeted for 2027. Also, some future developments of Pyri will be to incorporate artificial intelligence to assess whether triggered alerts are truly fires, by combining sensor signals with real-time weather and satellite data.
Pyri’s compact, camouflaged sensor might just offer the head start communities need to protect lives and landscapes.
Arielle
Well, thank you for sharing this, Karissa.
I do love when we have an episode that has a shared theme. So my solution also has to do with protecting our environment and protecting ourselves as a whole ecosystem that works together.
On the Optimist Daily and also on other outlets that share sustainability or conservation news, rewilding projects that feature cute animals are usually highlighted—so animals that we find endearing, like bears or elephants or something. But when I saw this title come up this week, it really made me smile because it’s a success story about an animal that I think we humans don’t think very highly about: vultures!
Karissa
Uh, yeah, I guess we don’t really have a lot of vulture appreciation.
Arielle
No, there are no warm fuzzy feelings for vultures. They’re not cute—they’re pretty gruesome-looking, to be honest, and they’re often perceived as dirty and ugly. I think they’re actually depicted as villains in some movies and stuff like that.
Karissa
Yeah, I was thinking that.
Arielle
I honestly didn’t think much of them until I came across…
There’s this podcast that I really like to listen to. It’s called Radiolab, and they have an episode called Corpse Demon that revealed just how important vultures are for everyone on Earth, basically.
Their stomach acid is strong enough to neutralize anthrax and other dangerous pathogens. They have this incredible immunity that lets them eat what almost no other animal can stomach. They feed exclusively on carcasses, which means they help prevent the spread of disease—and without them, rotting animals can become serious public health risks.
Karissa
Arielle, this goes back to your pessimism earlier—because no matter what your body looks like, even if you’re a quote-unquote “ugly” vulture, you can do some amazing things with your body and should be grateful for what it can do.
Arielle
Huh. Yeah, so true.
Karissa
I’m already liking the direction this solution is going. I guess vultures are kind of like the sanitation workers of the world! I remember hearing that a single vulture can clean up a carcass in just a few hours.
Arielle
Yeah, pretty gross—but also impressive. So the title of the article I’m talking about is Europe’s sky scavengers return: the ambitious rewilding project reviving vultures in Bulgaria.
The work is specifically centered in the rugged terrain of the Balkan Mountains, where two species—the Griffon Vulture and the Cinereous Vulture—had actually gone locally extinct for decades. But thanks to a huge EU-backed conservation effort, they’ve been successfully reintroduced.
Karissa
That sounds so cool. I’ve only ever really heard about reintroducing wolves or maybe bison. How did they pull this off?
Arielle
It’s taken years of work. The reintroduction started back in 2010 for Griffon Vultures and 2018 for Cinereous ones.
Conservation groups like the Fund for Wild Flora & Fauna and Green Balkans have teamed up with international partners like the Vulture Conservation Foundation.
And here’s the big news: for the first time ever, Bulgaria has now reintroduced the Bearded Vulture—that’s Europe’s rarest vulture species. That means the country is now home to all four native vulture species once again.
Karissa
That’s amazing. It’s not just about saving one bird—it’s a full restoration of the vulture ecosystem.
Arielle
Yes. And what’s really special is that the Balkan Peninsula connects European vulture populations with those in North Africa and Turkey. So it’s like this critical bridge for biodiversity and gene flow.
These birds don’t recognize borders, of course. They’re long-distance fliers—some of them migrate thousands of miles—so having this corridor restored really matters.
Karissa
Yeah, absolutely. And I can imagine it’s not just a “release them and hope for the best” type of situation, right?
Arielle
No, not at all. Each bird release involves a whole support system: habitat restoration, ongoing tracking, community education.
Some of the vultures are even fitted with high-tech sensors that track their geolocation and body position. So if a bird stops moving or behaves abnormally—maybe due to injury or poisoning—teams can intervene quickly.
Karissa
Well, poisoning… I feel like that’s probably a big issue, especially for scavengers that are kind of eating anything.
Arielle
Unfortunately, it’s still a major threat. Some farmers poison carcasses to kill predators like wolves, but vultures end up eating them too—and the effect is devastating.
That’s why part of this effort includes the BalkanDetox LIFE project, which works to detect poison use, improve law enforcement, and educate the public about why it’s so dangerous—not just for wildlife but for people too.
Karissa
It’s so encouraging to hear about this kind of collaboration across different sectors. There are scientists, communities, and governments all working together to make this happen.
Arielle
And legally, the EU Birds Directive has been crucial. That’s a law that’s been around since 1979, and it protects all 500 bird species in the EU. It requires countries to safeguard breeding grounds and restrict harmful practices as well.
It’s one of those behind-the-scenes policy wins that’s really helping species like vultures take flight again—literally.
Karissa
Well, I love this story. It’s such a good reminder that we don’t have to love every animal’s aesthetics to appreciate their role in our ecosystems.
Vultures may not be adorable, but they’re definitely essential.
Arielle
Totally. And now that we know how hardcore their immune systems are—and how efficient they are at disease prevention—maybe we can start seeing them with a little more “awe” instead of “ew.”
Granted, they are weird—but they’re wonderful. And they’re back in the skies of Europe, where they belong. So we’re really happy about that.
Karissa
I know we had a lot of other great solutions on the Optimist Daily this week, and I felt honestly so optimistic from a lot of the headlines we had.
Arielle
Yeah, I feel the same. Some of those headlines include: 8 weekend rituals successful people embrace to recharge and thrive, Barbie debuts first doll with type 1 diabetes, boosting visibility and inclusion, Lisbon leads Europe with first citywide reusable cup system, and 10 eco-friendly kitchen appliances to make your home greener.
Karissa
And we also had Crossbreeding corals to save Miami’s reefs: a bold new strategy against climate change, Too hot to handle? How to exercise safely when the temperature rises, Before you hit the road: 5 things to unplug before vacation, and A new study could change Alzheimer’s treatment by unlocking the brain’s sugar code.
Arielle
Well, hopefully that gives you enough optimistic reading material for the weekend.
Karissa
Yeah, and I’m looking forward to being back next week with even more solutions for our listeners. So have a great weekend, everyone! Arielle and I will be back next week.
Arielle
Until then, bye!
Karissa
Bye!The post Podcast Transcript July 18, 2025: From pinecones to predators: Wildfire tech and the misunderstood vulture first appeared on The Optimist Daily: Making Solutions the News.