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Curiosity Weekly

The La Brea Tar Pits Are a Climate Crime Scene!

Curiosity Weekly

Warner Bros. Discovery

Self-improvement, Science, Astronomy, Education

4.6935 Ratings

🗓️ 6 August 2025

⏱️ 28 minutes

🧾️ Download transcript

Summary

Los Angeles is home to the only place in the world where ancient fossils are being actively excavated in the middle of the city: The La Brea Tar Pits. Today, host Dr. Samantha Yammine speaks to the deputy director and assistant curator of the La Brea Tar Pits and Museum, Dr. Regan Dunn. They talk about what makes this site so fascinating and what we can learn from what we find hidden in the tar. Sam also explores a recent study on methane capturing at a California dairy farm. Then, she is joined by Aly Moore to discuss the benefits of entomophagy aka eating insects.   

 

Link to Show Notes HERE 

 

Follow Curiosity Weekly on your favorite podcast app to get smarter with Dr. Samantha Yammine — for free! Still curious? Get science shows, nature documentaries, and more real-life entertainment on discovery+! Go to https://discoveryplus.com/curiosity to start your 7-day free trial. discovery+ is currently only available for US subscribers. 


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Transcript

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0:00.0

Despite thousands of years of scientific research and innovation, there's still so much about our planet that we don't understand.

0:09.0

We're constantly trying to find mutually beneficial ways to interact with the Earth so we can evolve nicely together.

0:15.0

And science helps us do just that.

0:18.0

Whether that means digging up the remains of ancient mega mammals trapped

0:21.4

in tar, or eating crickets, or capturing methane from cow dung, there are always researchers

0:26.6

on the front lines investigating how we can do better. I'm Dr. Samantha Amin and welcome to Curiosity

0:32.2

Weekly from Discovery. Today, we're going to get into some entomophagy. That's a very intellectual way to say,

0:39.7

eating insects with Allie Moore. Then we'll cover the dangers and potential solutions of cow poop.

0:46.1

And we're also joined by Dr. Reagan Dunn, who oversees research at the La Brea Tarpitz

0:50.3

and Museum in Los Angeles. And speaking of fascinating research, if there's a story

0:55.5

you're dying for us to cover, just let us know. Give us a review on Spotify or Apple Podcasts,

1:00.6

and tell us what kind of science you think we should be looking into next. You just might hear it

1:04.9

on a future episode. If you think that carbon dioxide is the main villain when it comes to climate change,

1:13.8

let me introduce you to its less sexy but equally hazardous cousin, methane.

1:19.7

It's a silent but deadly greenhouse gas escaping from dairy farms. Methane accounts for about

1:24.8

11% of global emissions by mass, but it's more potent than carbon dioxide

1:29.3

at first. In the first 20 years it spends in the atmosphere, it can trap over 80 times more heat

1:35.3

than the same amount of carbon dioxide. But it doesn't last as long in the atmosphere. Methane

1:40.3

breaks down quickly within a decade or so. Carbon dioxide, on the other hand, is like the best down sleeping bag on the market. Think mummy bag style with a hood. That's because it keeps Earth insulated for centuries or longer, making its warming effects persistent and harder to reverse. Given how much temperatures have risen in just a generation, I'd say we need to focus on both the

2:02.0

short and the long term. Methane has a reputation for being produced by cow farts, but in reality,

2:09.1

methane comes from the breakdown or decay of any organic material. About a quarter of California's

2:15.1

methane emissions comes from decomposing cow poop on farms.

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