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Mindy Thomas
Hey Wowzer fams. Mindy here. And before we start the show, I got some big news for you. Seattle. It's time to make it wow. That's right. This June, me and my friends Carlie Q, Dennis, Grandma GeForce and Thomas Fingerling are headed to Seattle for our live Bonkerballs competition game show where kids turn their wildest and weirdest ideas into jaw dropping inventions. Live on stage. Tickets are on sale now. Visit tinkercast.comevents to get your tickets to make it wow near you once again, that's tinkercast.com events. We can't wait to see you soon. But for now let's get back to the show.
Guy Raz
Proceeded. Three, two, one mission. Get ready for an adventure of navig magnificent proportion.
Dennis
I don't know what you've been told. We're in a golden age. So many discoveries that are jumping off the page while in the world. Wow.
Guy Raz
Houston.
Dennis
Wow. It is really coming down out there.
Mindy Thomas
Yeah, that's a whole lot of cloud juice.
Dennis
It's been raining for seven straight days. The whole city is gonna flood if this doesn't stop soon.
Mindy Thomas
I wonder how many clouds you'd have to squeeze to flood the whole city.
Dennis
Let me turn on the TV news and find out if there's any end in sight.
Gail Richards Simmons
Good afternoon and thanks for joining us at wow News. I'm Gail Richards Simmons and I'm late for dinner. Bob.
Guy Raz
What?
Mindy Thomas
That joke never gets old.
Guy Raz
Okay, fine.
Gail Richards Simmons
I'm Bob Rel and tonight's top story. Wow. In the water.
Guy Raz
It's a real gully washer out there, folks.
Gail Richards Simmons
That's right, Bob. For a seventh straight day in a row, the rain is coming down and there is no end in sight.
Dennis
No end in sight. There's no place for the water to run off to.
Mindy Thomas
Well, sure there is. It could just run off into the storm drains and the pipes under the city.
Dennis
Well, normally that would be the case, but not with this much rain.
Guy Raz
That's right. It's a record breaking cloudburst. Just buckets and buckets of rain out there.
Mindy Thomas
Not just rainwater. It's raining cats and dogs out there.
Dennis
Well, that's a great expression, but in an actual fact. What in the. What is going on? This is just too much for our city's drains and pipes to handle.
Gail Richards Simmons
Let's go live to our storm team reporter, Penny Presley, standing out in the rain without an umbrel.
Penny Presley
Thank you, Gayle. As you can see, I am being absolutely drenched in a substance some would call water.
Mindy Thomas
What others call it.
Penny Presley
And now everyone's wondering, where did this so called water come from?
Dennis
What?
Penny Presley
Experts say it came from clouds in the sky.
Dennis
Well, we know that water comes from clouds. How is this even news?
Penny Presley
Regardless of where the rain came from, the water has flooded the city, turning it into a water park of epic proportions. Also, my shirt's all wet.
Mindy Thomas
You think she'd at least wear a raincoat or something?
Penny Presley
However, one brave citizen decided to come out today, despite these torrential downpours and the warnings to stay indoors.
Mindy Thomas
Oh, no.
Dennis
I don't understand. Who would ever want to go out in this weather?
Penny Presley
Her name is Gertle Greenpeace, and she's here.
Grandma G Force
The name is G Force.
Dennis
What?
Grandma G Force
I said G Force.
Penny Presley
That's your name?
Grandma G Force
That's your question.
Mindy Thomas
That's Grandma G Force.
Dennis
Hi, Mandy on the news.
Grandma G Force
I'm on the news, guy.
Mindy Thomas
Raz, she's famous.
Penny Presley
Grandma G Force, what brought you out into this devastating storm today?
Grandma G Force
My legs.
Penny Presley
Uh, yes, yes, but why did your legs bring you out here? We've been cautioning people to stay indoors at all costs.
Grandma G Force
Yeah, I'm never not gonna listen to that.
Penny Presley
I see. Well, it looks as though you came prepared. As we can all see, you are wearing your swimsuit.
Dennis
What? Oh, boy.
Grandma G Force
This ain't no swimsuit.
Mindy Thomas
Here we go.
Grandma G Force
This here is a hot pepper wrestling unitard.
Penny Presley
All right, then.
Grandma G Force
I was just on my way to little buff Bunny's big gym over there, trying to get my workout on so I can wrestle some hot peppers.
Penny Presley
Ah, yes, Lil Buff Bunny's big gym. The gym so big that five acres of natural forest were taken down and paved over to make room.
Grandma G Force
You talking to me?
Penny Presley
No, I was. I was talking to the viewers.
Grandma G Force
Where?
Penny Presley
The viewers at home watching us on tv.
Grandma G Force
What tv? I can't see it through the camera.
Mindy Thomas
How developers had to cut down over five acres of trees just to build little Buff Bunny's big gym. That's like four football fields worth of forest.
Dennis
Yeah, and in front of that, they tore down another four acres to build the parking lot. And next to the parking lot, the city built the world's largest parking lot. The size of 500 football fields.
Grandma G Force
Ah.
Mindy Thomas
And let's not forget all the forests that had to be cut down in order to build the spin zone last year. And the river that had to be paved over in order to build the parking lot for the spin zone.
Dennis
So many trees plowed and paved over to create parking lots. And the parking lots for the parking lots.
Mindy Thomas
Flooded parking lots now.
Dennis
Yeah, the city's been so paved over by concrete, there's nowhere left for all of this rain to run off to.
Penny Presley
Everyone's mind is, where did the pennies come from?
Grandma G Force
So I dive into the fountain at the mall, and then I take all the pennies and I sh. Into my unitard like so. And that's how I get my lumps.
Penny Presley
Ha. Lumpy handfuls of pennies in your bathing suit.
Grandma G Force
It's a unitard.
Gail Richards Simmons
Uh, Penny Presley, can we get back to focusing on the rain and flooding for this news report, please?
Guy Raz
I agree. I do not want to hear any more about lumpy bathing suits.
Grandma G Force
Well, huh.
Mindy Thomas
Nothing like live local news.
Dennis
This is a disaster.
Mindy Thomas
I'll say. Grandma G Force should never have agreed to speak on camera.
Dennis
No, I mean the incessant rain, the flooding. It's a disaster, Mindy.
Mindy Thomas
Oh, right, the flooding. So why is it happening, Guy Raz? I mean, does all of this flooding have anything to do with the fact that all of the forests and rivers in this city have been bulldozed and replaced by concrete?
Dennis
Well, that's a great question, Mindy. See, in highly developed cities like ours.
Mindy Thomas
Cities with lots of big buildings and even bigger parking lots.
Dennis
Exactly. Yes. In order to build these parking lots and buildings, space has to be made for them. And that space can only be created by removing nature and essentially paving over it.
Mindy Thomas
Ah, so paving. Kind of like how the space where little Buffbunny's big gym used to be a lush forest.
Dennis
Right? A lush water absorbing forest.
Mindy Thomas
Or how the world's largest parking lot used to be a river bank.
Dennis
Right, A river bank for rainwater to run off to.
Mindy Thomas
Paving over a river bank to build a parking lot.
Dennis
And when this happens over and over again, all over a city, suddenly we're left with two potentially big problems and plenty of parking. And the first problem is that all of that concrete and asphalt actually makes a city hotter.
Mindy Thomas
Ah, by absorbing and trapping the heat from the sun, which causes temperatures to rise.
Dennis
And when this happens, cities essentially turn into urban heat islands.
Mindy Thomas
But then it rains and everything cools off again.
Dennis
Well, it might, but all of that cool, refreshing rain that has to go somewhere once it hits the ground.
Mindy Thomas
And that's why we have storm drains and pipes to carry the water out to nearby rivers, lakes, or the ocean.
Dennis
Right, but when there's too much rain for the drains to handle, or when the nearby rivers and lakes have been paved over and turned into parking lots.
Mindy Thomas
Ah, there's nowhere left for the rainwater to go.
Dennis
And that's when we get the flooding that we're experiencing right now.
Penny Presley
As you can See here, folks, the flooding is now up to my waist.
Guy Raz
Chief Horse.
Grandma G Force
Ah, hush.
Dennis
Fl. Todd is fingerling.
Guy Raz
Chief Horse, what are you doing out here? Can't you see it's flooding?
Grandma G Force
Can't you see that I'm on tv? Fingerling.
Guy Raz
Ooh, live tv, eh?
Penny Presley
Joining us now, a gentleman in a very strange boat.
Guy Raz
Well, technically, it's a bathtub, but I'm using it as a boat to come and rescue G Force over here. G Force, get in the tub.
Grandma G Force
No.
Guy Raz
Well, then I'll put you in the tub. Come here.
Grandma G Force
Hey.
Dennis
Ow.
Mindy Thomas
I told you not my girl.
Grandma G Force
Lanes, you're spilling all my panties.
Guy Raz
And I told you to stay out of that moll's fountain. Those pennies are for the wishes, and.
Grandma G Force
I'm wishing for money.
Guy Raz
That ain't your money.
Dennis
This is a disaster.
Grandma G Force
Oh, me honey bunny?
Mindy Thomas
The flooding rain or grandma G Force and Thomas Fingerling fighting on live tv?
Dennis
Both.
Guy Raz
Now get in here.
Grandma G Force
Don't tell me what to do.
Mindy Thomas
Okay, well, let's solve one problem at a time. And the easiest problem here to solve is reversing the effects of paving over all the trees and wetlands in our city.
Dennis
Okay, well, let's get to work. Give me your best idea.
Mindy Thomas
Okay, let's say we take everything off the ground, including the ground, and then we elevate it. You know, put it up on stilts or something. The buildings, the houses, the parking lots, all of it. We raise it all up to a level where the flooding can't reach it.
Dennis
Okay. Terrible idea. Costly and impossible to implement on a large scale. What else have you got?
Mindy Thomas
Okay, let's see here.
Penny Presley
Oh.
Mindy Thomas
Okay. We embrace the flooding and turn the whole city into a giant water park. The roads become water coasters and the parking lots become boat docks.
Dennis
Completely unfeasible. Never gonna work. Next.
Mindy Thomas
All right, all right, I got this. I got this. Okay, what if we gave every citizen really big straw, and then on the count of three, we get everyone in the city to come outside and suck the water away?
Dennis
Great idea for poisoning everyone. Awful idea for rainwater mitigation. Mindy, can't you think of any good ideas?
Mindy Thomas
Uh, nope.
Guy Raz
Citizens are concerned what can be done to save our city from flooding.
Penny Presley
That's right, Bob. What or who will save us from these flooding waters now and in the future?
Dennis
Dennis.
Thomas Fingerling
Never fear. I'll save you. Citizens.
Guy Raz
Ooh, look at that.
Penny Presley
This Justin, our local supervillain, Static man appears to have arrived on the scene.
Thomas Fingerling
No, I'm not Static Man. I'm Super Sponge Man.
Dennis
Super Sponge Man. Did any of Our friends heed the warning to stay inside and avoid the floods today.
Penny Presley
And as Super Sponge man, you will.
Thomas Fingerling
I will save the city. Floods and rain don't stand a chance against Spongemans.
Penny Presley
Fascinating. How exactly do you plan to save the city? What do you mean?
Thomas Fingerling
Isn't it obvious?
Dennis
No.
Thomas Fingerling
Well, I'll suck up the water with my sponge powers. See, I got sponges all over my cape. And a little sponge strapped to my forehead here. And another sponge glued to my butt.
Mindy Thomas
And.
Thomas Fingerling
Sponge.
Dennis
Super sponge. Bam. This is re. Genius. Wait, what?
Mindy Thomas
Okay, you go first.
Dennis
No, no, you go first.
Mindy Thomas
Okay, what if sponges were the answer to all of the problems we've created for ourselves?
Dennis
Go on.
Mindy Thomas
Well, see, we humans have created this mess by paving over nature to build parking lots and buildings, right?
Dennis
Yes, because with nothing but asphalt and concrete as far as the eye can see, there's nothing left to absorb the water.
Mindy Thomas
Unless we add sponges.
Dennis
Mindy, are you suggesting we.
Mindy Thomas
Kyraz, I am suggesting that we turn our city into Sponge City.
Dennis
Sponge City. Mindy, we're never gonna be able to find enough sponges to soak up all the excess rainwater.
Mindy Thomas
Yupping.
Dennis
And besides, we'd have to cut down even more forests just to be able to build factories to manufacture that many sponges.
Mindy Thomas
No, no, no, you don't understand.
Dennis
And on top of that, sponges, especially synthetic. Synthetic ones can be bad for the environment because they're not biodegradable and can contribute to plastic pollution when we throw them away. And on top of that, Raz, I'm.
Mindy Thomas
Not talking about sponges made in factories. I'm talking about nature's natural sponges.
Dennis
I'm sorry, I haven't heard of that brand.
Mindy Thomas
It's not a brand, Guy Raz, it's nature.
Dennis
I'm not sure I understand.
Mindy Thomas
Well, you said it yourself before, dense cities were paved over, replacing trees and wetlands with concrete buildings. Rainwater was able to run back into the earth. Okay, so imagine our city like a giant sponge. And just like a sponge soaks up water when you spill it, our sponge city will soak up rainwater when it rains. And that would prevent flooding.
Dennis
But what will we use for the sponges?
Mindy Thomas
Well, in Sponge City, we'll place natural sponge like materials on roofs, the outer walls of buildings, and other places where we can add big areas of plants with absorbent soil layers underneath.
Dennis
So essentially adding large areas of natural plants and absorbent soil to places where we wouldn't normally do that.
Mindy Thomas
Exactly. I'm talking green roofs, green facades, and other garden like areas that can act like shallow drains to capture rain and stormwater runoff.
Grandma G Force
Ah.
Dennis
And these natural sponge like areas could collect water before it moves to the streets where it could become polluted.
Mindy Thomas
Yes, and doing this would keep it from reaching our drinking water sources and other bodies of water like rivers and streams and lakes.
Dennis
Sponge City. I like the sound of that. Wow. I mean, Dennis, Super Sponge man could really be onto something here.
Thomas Fingerling
And as the mayor of Sponge City, I vow to use my super snoop, I mean, super sponging powers to make this city softer, more absorbent, and more dumb. I need a third thing.
Penny Presley
Spongier.
Thomas Fingerling
Yeah, spongier.
Penny Presley
And there you have it, folks. Could the future of flood mitigation be found in sponges? Back to you, Bob and Gail.
Gail Richards Simmons
Sponge City. You know, Bob, while I'd like to give Super Sponge man all the credit for coming up with this concept, it was actually an idea first introduced in China some 20, 20 years ago by a landscape architect named Yu Kongjian.
Guy Raz
That's right, Gail. And since then, he has led the movement in implementing areas of spongy vegetation in the dense concrete jungles of major cities all over China and soon the world.
Gail Richards Simmons
For wow. News, I'm Gail Richard Simmons.
Guy Raz
And I'm not Bob. What? Gail, it's a little joke.
Gail Richards Simmons
Well, it's not a joke if it's not funny, Bob.
Guy Raz
That's it for the weather report. Stay tuned for our next story. How a raccoon became best friends with a squirrel.
Dennis
Wow. Mindy, in the age of technology that we're living in, it's wild to think that something as simple as adding natural soils and plants and other absorbent, spongy materials to our cities could be the answer to our flooding problems.
Mindy Thomas
Now, if only we could get the rest of our city. No, the rest of the world on board.
Thomas Fingerling
Did you see me? I mean, did you see that sponge wielding superhero on tv?
Grandma G Force
That superhero would be me.
Dennis
What?
Mindy Thomas
No.
Guy Raz
Granny G. All that rain is making me have to go potty. Mind if I use your lavatory, Mandy?
Mindy Thomas
Oh, sure, Thomas Fingerling. It's right over there. Thank you.
Dennis
So, what do you say we all be Sponge City superheroes and make plans to help our city to be the spongiest it can be?
Thomas Fingerling
Sorry, Guy. There can only be one super Sponge man, and it's not you.
Dennis
And it's obviously not you either, Dennis.
Thomas Fingerling
Oh, Guy. I beg your pardon.
Mindy Thomas
I love this idea. Turning ourselves into a pack of flood fighting superheroes. I'll go get my sponge cake. I mean, my sponge cape and a sponge cake just in case. I get hungry. Saving the city from floods.
Dennis
Great. And I'll start researching some local tree planting and gardening programs to increase green spaces that can absorb water.
Guy Raz
And I'll start collecting rain water in barrels and reusing that water in your gardens, Guy Razzie.
Mindy Thomas
Oh, great idea, Thomas Fingerling. If everyone did that, we could reduce the load on our stormwater drains and pipes.
Thomas Fingerling
And I'll see if I can arrange a meet and greet with the mayor of this sponge City, Super Sponge man himself.
Dennis
We don't even need Super Sponge Man Dennis. What?
Thomas Fingerling
What are you even talking about? Guy Raz.
Mindy Thomas
Yeah, we got this, Dennis.
Grandma G Force
No, I don't got this. I'm just gonna sit here and count the coins I sponged off of the mall Fountain Force.
Dennis
Grandma G Force.
Grandma G Force
Okay, fine, I'll help.
Dennis
Yay. Yay.
Mindy Thomas
Sponge City, here we come.
Reggie
Wow in the World.
Mindy Thomas
We'll be right back.
Reggie
Grown ups, this message is for you.
Mindy Thomas
That's it. Back to the show.
Dennis
Wow in the World.
Mindy Thomas
Hi, thanks for calling wow in the World. After the beep, get ready to record.
Reggie
My name is Fiona. I'm 13, I'm from Detroit, Michigan. And my wow in the world is that spaghetti got its name from the Italian word spago, meaning cord, string, or twine. Spaghetti is my favorite food. Say hi to Reggie, Dennis, Grandma G Force, and Thomas Fingerling.
Guy Raz
Ooh, where you doing all that?
Reggie
Hi, Mindy and Guy Ross. My name is Octavia. I'm seven years old and I live in Brooklyn, New York. In my wilderness world, is that raspberries are actually part of the Rose family. They hide a Grandma G Force shy.
Dennis
What?
Reggie
Reggie and Thomas Fingerling, Queens. I love your show.
Mindy Thomas
Bye.
Reggie
Hello, Minnie and Guy Raz. My name is Alton and I live in Manchester, Connecticut. And my wow in the world is that Barbie's full name is Barbara Millicent Roberts. Isn't that crazy? Say hi to Dennis for me.
Thomas Fingerling
Cool.
Reggie
Hi, my name is Esme and I live in West Seattle. My law in the world is that butterflies can taste with their feet. Hi, my name is Rita and I'm from Apopka, Florida. My wow is that there's a spring in Florida that in the winter, over 700 manatees visit to stay warm. BS. Say hi to Reggie and Grandma G Force for me. Bye. Hi, my name is Daniel and I live in the Nassau, Bahamas. My wow in the world is that before alarm clocks, people would pay someone to knock on their window and wake them up. They were called Knocker Uppers. Hi, Mindy and Guy Raz. My name is Oona and I live in Dahatchee, California. My WOW in the world is that squirrels brains grow 15% larger in the fall to help them remember where they buried their nuts. Isn't that wild? Love the show. Say hi to Reggie for me. Hi my name Guy Rats. My name is Charlie and my why in the world is that a dime has 118 ridges and everyone you had to do my riddle. What do you call a volcano that explodes? Grass? A mountain?
Mindy Thomas
End of Messages Grown Ups if you like WOW in the World you can listen early and ad free right now on Wondery.
Dennis
Join Wondery in the Wondery app or on Wondery Kids plus on Apple Podcasts prime members can listen ad free on Amazon Music.
Mindy Thomas
And before you go, tell us about yourself by filling out a short survey@wondery.com.
Dennis
Wow in the world is written by Mindy Thomas and Tom Van Kalkin with help from Me Guy Raz.
Mindy Thomas
Original sound design and music editing is done by our senior Production Director Jed Anderson and Audio Producer Tyler Thull. You can also hear Jed Anderson in the voices of Dennis, Thomas, Fingerling, Reggie and many of the other silly characters that you here on our show. And Lizzie Froehlich can also be heard as some of the silly characters on our show.
Dennis
Jessica Bode keeps our facts straight as our fact checker and Meredith Halpert Ranzer powers the WOW at Tinkercast.
Mindy Thomas
Our theme song was composed and performed by three time Grammy nominees the Pop Ups.
Gail Richards Simmons
Find them at thepopups.com Special thanks to.
Dennis
Kit Ballinger, Rebecca Caban, Dr. Natasha Crandall, Kenny Curtis, Kristin Yang, Twee Mac, Erica Medina, Henry Moskal, Jodi Nussbaum, Ali Paxima, Linda Rothenberg, Steph Sosa, Joanna Weber, Anna Sikorski and all of the other tinkerers at Tinkercast HQ.
Mindy Thomas
And to keep the wow rolling after you've finished this episode, visit us@tinkercast.com There you can become a member of the World Organization of wowzers to get year round mailings and weekly activities. Shop our wow Shop, get tickets for upcoming events, find our best selling books and learn about some of the other amazing podcasts from Tinkercast grownups.
Dennis
You can follow wow in the world on Facebook, Instagram and Twitter @wowintheworld and our email address is hellonkercast.com and if.
Mindy Thomas
You'Re a kid with a big wow to share with us, call us at 1-888-7-WOW WOW. For a chance to be featured at the end of our show or or an upcoming episode of 2 what's in a wow.
Dennis
Thanks again for listening. We're here every Monday, or you can check out two what's in a wow? Every Friday right here in the wow in the World podcast feed.
Mindy Thomas
And don't forget, we wow on the weekend with Dennis. Saturday and Sunday.
Guy Raz
Keep on wowing.
Dennis
Wow in the world. Wow in the world. Wow in the world wow in the world wow in the world wow in.
Reggie
The World was made by Tinkercast and.
Mindy Thomas
Sent to you by Wondery.
Wow in the World: Episode Summary – "Sponge City" (April 28, 2025)
Welcome to a deep dive into the "Sponge City" episode of Wow in the World, the beloved science podcast for kids and their grown-ups hosted by Mindy Thomas and Guy Raz. In this episode, the hosts explore the pressing issue of urban flooding, its causes, and innovative solutions to transform cities into more resilient, water-absorbing environments. Packed with engaging discussions, expert insights, and a touch of humor, this episode is both informative and entertaining for listeners of all ages.
Heavy Rainfall and Rising Waters
The episode opens with the hosts addressing a severe weather event affecting Houston. Mindy Thomas sets the scene:
“It's been raining for seven straight days. The whole city is gonna flood if this doesn't stop soon.” (02:34)
Guy Raz underscores the gravity of the situation:
“It's a record-breaking cloudburst. Just buckets and buckets of rain out there.” (02:38)
The continuous downpour has overwhelmed Houston’s infrastructure, leading to widespread flooding and transforming the city into an unintended water park.
Impact of Over-Paving and Urban Development
Dennis and Mindy delve into the root causes of the flooding:
“When buildings and parking lots replace forests and wetlands, there's nowhere left for the rainwater to go.” (07:19)
Mindy poses a critical question:
“Why is all of this flooding happening? Does it have anything to do with the fact that all of the forests and rivers in this city have been bulldozed and replaced by concrete?” (07:19)
Guy adds:
“In highly developed cities like ours, space has to be made for buildings and parking lots by removing natural landscapes.” (07:40)
This segment emphasizes how urbanization, characterized by extensive paving and removal of natural water-absorbing environments, exacerbates flooding during heavy rains.
Brainstorming Solutions
As the floodwaters continue to rise, the hosts and their animated characters brainstorm potential solutions. The idea of turning the city into a "Sponge City" emerges through a series of creative but initially impractical suggestions:
Mindy humorously suggests elevating all city structures:
“Take everything off the ground, including the ground, and then elevate it.” (10:37)
Dennis critiques the idea:
“Terrible idea. Costly and impossible to implement on a large scale.” (11:07)
Undeterred, Mindy continues:
“We embrace the flooding and turn the whole city into a giant water park.” (11:17)
This lighthearted exchange paves the way for more grounded and feasible concepts, leading to the collaborative idea of "Sponge City."
A Natural Solution to Urban Flooding
Mindy introduces the "Sponge City" concept as a way to integrate natural elements into urban environments to absorb and manage rainwater:
“Imagine our city like a giant sponge. Just like a sponge soaks up water when you spill it, our sponge city will soak up rainwater when it rains.” (13:07)
Dennis expresses enthusiasm:
“Sponge City. I like the sound of that. Wow.” (16:08)
Implementation Strategies
The hosts outline specific strategies to achieve a Sponge City:
Green Roofs and Facades: Installing vegetation on rooftops and building exteriors to absorb rainwater.
“We'll place natural sponge-like materials on roofs, the outer walls of buildings, and other places where we can add big areas of plants with absorbent soil layers underneath.” (15:17)
Absorbent Soil Layers: Incorporating layers of soil that can effectively capture and retain water.
Expanded Green Spaces: Creating more parks and gardens that can function as natural water reservoirs.
Mindy elaborates:
“Green roofs, green facades, and other garden-like areas can act like shallow drains to capture rain and stormwater runoff.” (15:32)
Origins of the Sponge City Concept
Gail Richards Simmons provides historical context, highlighting that the Sponge City idea originated in China:
“It was actually an idea first introduced in China about 20 years ago by a landscape architect named Yu Kongjian.” (16:46)
Since its inception, China has been a pioneer in integrating sponge city principles into major urban centers, demonstrating the effectiveness of these strategies in mitigating flood risks.
Benefits of Sponge Cities
Mindy and Dennis discuss the multifaceted advantages of adopting Sponge City principles:
“Adding large areas of natural plants and absorbent soil to places where we wouldn't normally do that can prevent flooding.” (15:41)
Dennis concurs:
“And these natural sponge-like areas could collect water before it moves to the streets where it could become polluted.” (15:52)
The conversation emphasizes that Sponge Cities not only manage excess water but also enhance urban biodiversity, reduce pollution, and mitigate the urban heat island effect.
Community Involvement and Personal Action
The hosts encourage listeners to participate in transforming their cities into Sponge Cities through simple, actionable steps:
Tree Planting and Gardening Programs: Dennis proposes researching local initiatives to increase green spaces.
“I'll start researching some local tree planting and gardening programs to increase green spaces that can absorb water.” (18:34)
Rainwater Harvesting: Guy Raz suggests collecting rainwater for personal use.
“I'll start collecting rainwater in barrels and reusing that water in your gardens.” (19:07)
Promotion of Green Infrastructure: The community can advocate for and support the development of green roofs, permeable pavements, and other sustainable infrastructures.
Embracing the Sponge City Mindset
The episode wraps up with a call to action, inspiring listeners to adopt the Sponge City ethos in their daily lives and urban planning endeavors. The integration of natural elements into urban settings is portrayed as a transformative approach to making cities more resilient against climate-induced challenges.
Messages from Kids
Adding a heartwarming touch, the episode features messages from young listeners who share their own "wows in the world," connecting the scientific discussion to the curiosity and creativity of children.
“My wow in the world is that spaghetti got its name from the Italian word spago, meaning cord, string, or twine.” – Fiona, 13, Detroit, MI (20:21)
These interactions reinforce the podcast’s mission to inspire hope and agency in young minds by making complex topics accessible and engaging.
The "Sponge City" episode of Wow in the World masterfully blends humor, storytelling, and scientific exploration to address a critical environmental issue. Through lively discussions and collaborative problem-solving, Mindy Thomas and Guy Raz illuminate how integrating natural elements into urban infrastructure can mitigate flooding and create more sustainable cities. This episode not only educates but also empowers listeners to envision and participate in building resilient urban environments.
Stay tuned for more exciting explorations and "wows" in future episodes of Wow in the World!
This summary is crafted to provide a comprehensive overview of the "Sponge City" episode, highlighting key discussions, insights, and memorable moments to ensure both new and returning listeners capture the essence of the episode.