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Science Friday

Australia Fires, Great Lakes Book Club. Jan 10, 2020, Part 1

Science Friday

Science Friday and WNYC Studios

Science, Life Sciences, Wnyc, Natural Sciences, Friday

4.4 • 6.3K Ratings

🗓️ 10 January 2020

⏱️ 46 minutes

🧾️ Download transcript

Summary

How Climate Change Is Fanning Australia’s Flames  All eyes have been on Australia in recent weeks as the country’s annual summer fire season has spun out of control with devastating damage to endangered wildlife, homes, farms, indigenous communities, and—as smoke drifts across unburned major metropolitan centers like Sidney and Canberra—air quality.  Vox reporter Umair Irfan and fire scientist Crystal Kolden explain why climate scientists are pointing the finger squarely at climate change for contributing to the fires’ unique size and intensity. Plus, Australian climate scientist Sarah Perkins-Kirkpatrick explains why climate change has heightened the country’s naturally volatile weather patterns to make this the worst fire season in living memory. Science Friday Book Club’s Winter Read Plunges Into The Great Lakes Even on a clear day, you can’t see across Lake Michigan. The same is true of the other Great Lakes: Superior, Huron, Erie, and Ontario. At average widths of 50 to 160 feet across, the five magnificent pools are too massive for human eyes to make out the opposite shore. These glacier-carved inland seas hold 20% of the fresh surface water on the planet, and are a source of food, water, and sheer natural wonder for millions of people in communities living on their sprawling shores. While the lakes have cleaned up immensely from a past of polluted rivers that caught on fire, it’s not all smooth sailing under the surface. From the tiny quagga and zebra mussels that now coat lake beds to the looming threat of voracious, fast-breeding carp species, the lakes are a far cry from the lush ecosystems they once were. This winter, the Science Friday Book Club will explore Dan Egan’s The Death and Life of the Great Lakes, which details both the toll of two centuries of human interference—and how the lakes can still have a bright future. SciFri Book Club captain Christie Taylor is back to kick off our reading! She talks with ecologist Donna Kashian at Wayne State University in Detroit, Michigan and Wisconsin author Peter Annin about the ravaged ecosystems and enduring value of these waterways.  Studying Drought, Under Glass Scientists are using the enclosed Biosphere 2 ecosystem to investigate how carbon moves in a rainforest under drought conditions. KNAU science reporter Melissa Sevigny tells us the State of Science. Solving The Mystery Of Ancient Egyptian Head Cones Ancient Egyptian artwork often depicts people wearing ceremonial head cones, but the role of these head dressings remained a mystery. Journalist and author Annalee Newitz talks about the first piece of physical evidence found of these head cones and what they may have been used for. Plus, other stories including a group of scientists who trained cuttlefish to wear 3D glasses to test their depth perception.

Transcript

Click on a timestamp to play from that location

0:00.0

This is Science Friday. I'm Ira Flato.

0:03.0

Later in the hour, we'll talk about how climate change is fanning the flames of Australia's deadly bushfire season.

0:10.0

But first, there has been an archaeological mystery.

0:14.0

Ancient Egyptian art depicts all sorts of headwear, from crowns to masks,

0:19.0

and physical evidence of these have been found, except for one piece, the head cone.

0:24.7

It has never been seen until now.

0:27.7

And only Newitz is here to fill us in on that story and other short subjects in science.

0:32.2

She is a journalist and author based in San Francisco and joins us by Skype.

0:36.3

Welcome back.

0:38.5

Hey, thanks for having me.

0:44.4

What are these Egyptian head cones? Describe them for us, please. Well, in drawings that we've seen painted on walls and also carvings from ancient Egypt, they look a little bit like kids'

0:50.4

birthday hats with a rounded top. So we're not talking about the sort of Saturday

0:54.4

Night Lifestyle cone heads. These are smaller. And some of the pictures show them with zigzag

0:59.8

lines coming out as if they have a scent to them. And so for a long time, archaeologists have

1:06.1

wondered what the heck these were. They'd speculated that they had perfume in them. Maybe it was something

1:12.2

people put on their heads during ceremonies because a lot of the pictures show people kind of partying

1:17.2

when they're wearing them, either going to a special dinner or engaging in a religious activity.

1:23.2

But we'd never found an example of it anywhere in graves or remains of Egyptian cities.

1:30.7

And so people had actually started to think that maybe they didn't exist.

1:34.0

Maybe they were kind of like speech bubbles in a comic book.

1:37.6

You know, people don't actually wear speech bubbles over their heads, but they draw people

1:41.0

with speech bubbles all the time.

...

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