Cooler but still well above normal this week

MPR News helps you turn down the noise and build shared understanding. Turn up your support for this public resource and keep trusted journalism accessible to all. 

Turn Up Your Support

When NPR interviewed Rep. Alexandria Ocasio-Cortez in February about her Green New Deal, she said that her goal was bigger than just passing some new laws. "What I hope we're able to do is rediscover the power of public imagination," she said.

Well, we're unleashing our imagination and exploring a dream, a possible future in which we're bringing global warming to a halt. It's a world in which greenhouse emissions have ended. 


                Solar panels fill a field in Provence-Alpes-Cote d'Azur, France.
                
                


                    
                    Panoramic Images/Getty Images
                    
                

Mass Electrification (Batteries Hold The Power)

(Editor's note: Each story has two sections, the first reflecting the present and the second imagining the world of 2050.)

2019: I went looking for people who've mapped out this world without greenhouse emissions. I found them in Silicon Valley.

 is an engineer. The back deck of her house, high up in the hills, overlooks Cupertino. Apple's circular headquarters is hidden in the morning mist. It's a long way from Istanbul, in Turkey, where she grew up; a great place to conjure up future worlds.

"Maybe you'd like some coffee?" Kiliccote says.

Her coffee machine is powered by solar panels on the roof. So is her laptop and her Wi-Fi.

"Everything runs on electricity in this house," she says.

This is the foundation of a zero-carbon world: Electricity that comes from clean sources, mainly the sun and the wind, cheap and increasingly abundant.

Today, it powers this house; tomorrow, it could drive the world.

Last year, Kiliccote quit her job at Stanford University and launched a startup company, 

, helping companies replace their fleets of vehicles, such as delivery vans, with electric-powered versions.

"In order to have impact, timely impact, I figured that I need to leave research and focus on impactful things that I want to do. And fast," she says.

 fast. Last year, the world's climate scientists put out a 

 showing what it will take to limit global warming to 1.5 degrees C by the end of this century, averting the worst consequences of climate change. It requires bringing the globe's net greenhouse emissions down to zero by 2050.

So Sila Kiliccote and I take that leap. Sitting in her kitchen, with solar panels overhead and an electric car parked outside, we pretend that it has happened. It's 2050 and we've stopped climate change.

2050: The first step was electric cars. That was actually pretty easy

"By 2025, battery technology got cheaper," she says. Electric cars were no longer more expensive. "At that point there was a massive shift to electric vehicles, because they were quieter, and cleaner, and [required] less maintenance. No oil change! Yippee! You know?"

Heating and cooling in homes and office buildings have gone electric, too. Gas-burning furnaces have been replaced with electric-power like heat pumps.

We needed more electricity to power all this right when we were shutting down power plants that burned coal and gas. It took a massive increase in power from solar and wind farms. They now cover millions of acres in the U.S., 10 times more land than they did in 2020. Huge electrical transmission lines share electricity between North and South America. Europe is connected to vast solar installations in the Sahara desert, which means that sub-Saharan Africa also has access to cheap power.

"It just changed Africa," Kiliccote says. "It actually fueled the economies of Africa."

We now store electricity so that it's always there when we need it. With batteries, of course, but in lots of other ways, too. For instance, cities are using electricity to heat and chill 

, which then heat or cool buildings at any hour of the day or night.


                Sila Kiliccote left Stanford University and founded eIQ Mobility, a startup company focused on helping companies electrify their fleets of vehicles.
                
                


                    
                    Dan Charles/NPR
                    
                

,  co-director of the Stanford Precourt Institute for Energy, is so ready to take the leap and imagine this zero-carbon world 2050, it's a little startling.

"I regularly take a helicopter, an electric helicopter, from here to San Francisco," she assures me, totally deadpan.

"You can run a helicopter on batteries?" I ask, not quite believing it.

"Oh, yes! Oh, God, yes. That happened a long time ago," Benson says, laughing. "That happened in the 2030s. That was great."

But she says that even in this all-electric world, there are some holdouts. Some things have just been really hard to electrify.

Some big cement and steel plants still are burning coal or natural gas, but they also have to install massive plants to capture carbon dioxide from their smokestacks and put it back underground.

"We just had to kind of bite the bullet and say, 'OK, if you're making cement or steel, you are capturing and sequestering that CO2,'" Benson says. "And in some cases we actually had to say, 'We're not going to make those things here anymore'" because it wasn't economically feasible to capture the CO2 emissions from that factory.

Big, long-distance freight trucks were a problem, too. "They're really heavy, and batteries are really heavy, and if you have to put a whole bunch of batteries on a truck it's really inefficient," Benson says.

In some areas, like this one, our picture of the future gets a little fuzzy. Different guides to this 2050 world show me slightly different things.

Some of my guides see "electric highways" with wires overhead, and trucks tapping into the electric power in those wires the same way trains do. Others see trucks running on hydrogen fuel; we make that hydrogen using solar or hydro power.

It appears that aircraft still are burning jet fuel. When you buy a plane ticket, you're also paying to cancel out that flight's carbon emissions, capturing an equivalent amount of CO2 from the air. This makes air travel expensive. Fortunately, we now have much faster trains. Teleconferencing helps, too.

Sally Benson is absolutely convinced about one thing. The hardest part of this journey wasn't finding technical solutions. They all existed, even back in 2019. The hardest part was navigating the social disruption.

"The transformations were so profound that it really needed to be a collective effort," she says.

Entire industries died -- like oil exploration and gas furnace manufacturing. Others rose to take their place, as the country rebuilt its electrical systems. People didn't know what would happen and they were scared. The changes only moved ahead when people were convinced that they weren't getting ignored and left behind. It was the political struggle of a generation.

Now, in 2050, there's a tremendous sense of accomplishment.

"Are there children who look around at all the old buildings and say, 'What are those things they call chimneys? What were they for?' " I ask.

"They do," Benson says with a chuckle. "You know, it's like a historical artifact, but you know, they find it very touching. They are appreciative, because they're living in a world where they don't need to worry about climate change anymore."

It wasn't easy and it wasn't free, Benson says. But it was absolutely worth it.

The air is so much cleaner. Cities are quieter. And we're no longer heating up the planet.


                A streetcar rolls down King Street in downtown Toronto. Most car traffic has been diverted from this section of the street.
                
                

The Urbanization Of Everything (A Desire Named Streetcars)

2019: I'm taking a walk through downtown Toronto, in Canada, with 

Keesmaat wants me to see one particular street. King Street. It's the seed of a zero-carbon future, she says.

King Street has a little bit of everything: glass-walled office buildings, theaters, old brick warehouses.

 of traffic rules went into effect here. "Basically, what we've done is, we've limited through-traffic for cars," Keesmaat says. It forced cars away from King Street and launched a whole cascade of changes.

The streetcars that run down the middle of King Street weren't stuck in traffic anymore.

They became the best way to get across town at rush hour. "The volume of people being moved is astronomical!" Keesmaat says, as one rolls by. The streetcars, of course, are powered by electricity, and one passes every two or three minutes.

Meanwhile, thousands of people have been moving into this downtown neighborhood, buying condos and renting apartments. Keesmaat knows one of them. He's the father of one of her friends.

"He said to me a few weeks ago, he thinks he takes out his car about once every two weeks," Keesmaat says. He walks to shops, restaurants and basketball games. His neighbors walk to jobs in the financial district right down the street. He's not heating a big free-standing house, either.

He has cut his energy use, and his greenhouse emissions, dramatically.

"That wasn't the driver for him," Keesmaat says. "He didn't say, 'How do I in fact live smaller?" It just happened naturally in this new urban geography.

For a city planner, like Keesmaat, this is totally inspiring. "When we provide people with real choices, better choices, it can open up our minds!" she says. "We can change our minds about what we thought was the only way to live."


                Jennifer Keesmaat is the former chief city planner of Toronto. She also hosts a podcast called 

2050: At this point, Keesmaat and I open up our minds and take a leap into a world that could be. Greenhouse gas emissions have dropped to zero.

How did we do it? By gradually reshaping our cities so that they look more like this neighborhood, with lots of people living close together, within walking distance of many of the things they need.

Keesmaat can already see this city in her mind, and describe it. "The vast majority of streets have been pedestrianized; that's how people get around, by walking down the street," she says.

"What has happened to the sprawling suburbs?" I ask. "Are people living there? How are they getting around?"

"Some of the large homes haven't changed at all," Keesmaat says. They've just been turned into multifamily units." Other free-standing houses that once lined suburban cul-de-sacs have disappeared; each one has been replaced with a building that contains five or six homes. With the local population booming, those neighborhoods also attracted shops and offices. Suburban sprawl morphed into urban density.

Cars have mostly disappeared. "There are cars, but people don't own cars," Keesmaat says. "Because a car is something that you use occasionally when you need it." Streetcars and buses go practically everywhere in the city now, and you rarely have to wait more than a couple of minutes to catch one. Fast buses and trains connect towns. For other destinations, there's car-sharing.

, another one of my guides to this zero-carbon world. He's a professor of energy systems at the University of Ontario Institute of Technology. Years ago, he wrote a big 

 on cities and climate change for the World Bank.

He also can describe this new city, and how it took shape. Local governments created it, he says. First, they gave people new ways to get around: subways, bike lanes, buses and streetcars.

But along with those carrots, there was also a stick. Cities took control of the precious real estate known as "roads" and started charging for the right to use them. "Maybe the most powerful thing that got us here, is [that] we got the pricing right," he says. "So, you want an autonomous vehicle? Bless your heart, but it costs you more to drive that autonomous vehicle on the road by yourself. If you ride-share, it's a little bit less."

"And this is even if they are electric vehicles?" I ask.

 if they're electric vehicles!" Hoornweg says. Personal electric cars for everyone couldn't solve the problem, he explains. First of all, electricity is precious. We can't waste it powering everybody's electric car.

Second, electric cars could have clogged the streets of our densely populated cities the same way gas-burning cars once did, back in, say, 2019. Our city of 2050 functions because streets are clear for buses and streetcars that carry dozens or even hundreds of people at a time.

The basic recipe -- densely populated neighborhoods linked by mass transit --has been the same for cities all over the world, Hoornweg says. But the details came from constant experimentation. If an idea worked in one place, other cities snatched it up. For instance, way back in 1991 the city Curitiba, in Brazil, built dedicated roads for fast buses, kind of a train system running on wheels. That kind of 

And it wasn't just technology, Hoornweg says. Over the past three decades, from 2020 to 2050, a huge cultural shift has taken place.

Just one example: In Toronto, the sharing economy that started decades ago with Uber and Airbnb is everywhere now. "Sharing rides, sharing tools, sharing somebody to look after your dog when you're not there."

Yes, we apparently still have dogs in 2050.

In part, people are forced to share things; cars are scarce and homes are smaller. (Scores of home builders went belly-up in the 2030s when millions of people suddenly decided that big houses weren't just expensive; they were lonely, too.)

But the scale of zero-carbon life also makes it easier to share. We're living closer together and run into neighbors all the time. "We have more acquaintances -- somebody we met in our ride pool or car pool or whatever," Hoornweg says. "There's no better way to [meet your neighbors] than sitting in a [shared] car and you can't get away from them for 20 minutes or whatever."

Some people hated losing their yards and their solitary commutes at first. Others loved the changes. Eventually, Hoornweg says, it just became normal. People stopped talking about it.

Life now goes on as it always did. But there's one huge difference. We're no longer heating up the planet.


                A cow in Colombia enjoys some of the nutritious, fast-growing grass varieties developed at the International Center for Tropical Agriculture.
                
                

Environmental News

Climate

Dan Charles

Author

Let's imagine that we've ended global warming. Humans no longer are releasing greenhouse gases into the atmosphere. Here's what life is like in a zero-carbon world.

It's 2050 and this is how we stopped climate change

Go Deeper.

Like this?

News you can use in your inbox