
Illustration by Rodrigo Rodriguez
For years, I’ve maintained that what Japan’s cities need is more car thieves.
Every day we see vehicles parked in front of stores, parks, malls and train stations with the engines running. Years ago, at night in a small town, I watched a man in a Mercedes go into a store, leaving the engine running. Concerned about the environment, I asked him, “Aren’t you going to turn the engine off?” He thought I was worried about crime and told me, “Don’t worry, no one here will steal it.”
It seems that many people are concerned about the Kyoto Protocols, but not about the streets of Kyoto. According to experts, even when a car is cruising down the street, more than 80 percent of the energy of combustion is wasted as heat. When an automobile is idling, the cooler engine temperature impedes the function of the exhaust-filtering catalytic converter. The vehicle is soon producing an unfiltered mix of harmful gases.
Isn’t there anything a concerned citizen can do when seeing a car idling needlessly?
From this question came the “Stop Idling Yellow Card” campaign. I printed up a set of cards about the size of drink coasters with the intention of “penalizing” drivers who leave their cars running. As of this writing, our small band of volunteers has approached 200 people, pointing out that their idling engines are wasting costly gasoline and releasing greenhouse gasses.
Why make the card yellow? We don’t have the authority to force people to turn off their own cars, and we encourage cooperation rather than confrontation. A gentle warning card like those used by soccer referees was an obvious choice.
Instead of just plastering notices on windshields, though, we try to engage each driver in discussion. “The problem with the environment is not in the future—it’s now,” we say. Or: “Wouldn’t it be good to turn the engine off?” Only after establishing that essential personal contact do we hand over the yellow card and encourage drivers to read over the printed information.
We’ve seen that we can bring about a direct, immediate result in just 30 seconds of conversation: a full 65.5 percent of drivers we spoke with turned their engines off, with a few even giving us an encouraging thumbs up or OK sign. Compare that to marketing practices like direct mail advertising, which only gets a 2-3 percent response rate. People can shrug their shoulders at the TV news, but when a fellow human being walks up and asks them to turn the engine off, it brings the entire global warming debate into their lap.
Of the 34.5 percent of yellow cards that didn’t result in an engine being turned off, the most common reason was simply that there was no driver in the car to speak to. We had no options other than jumping in and taking the keys, or slipping a card on the windshield. We went for the latter—although the idea of taking the keys was sorely tempting.
The people we spoke to who didn’t turn their engines off included drivers of refrigerated delivery trucks and cabbies who insisted that they needed their vehicles to be running for their dispatch radios to work. For overworked salarymen napping in their cars, we usually put a card on the window, but for those who egregiously parked under the shade of trees near public parks, we tapped on the window and asked them to turn the engine off.
In the tedium of talking with hundreds of people, there were a few moments of humor. One young woman wearing a miniskirt in the passenger seat started to climb over to the driver’s seat to turn the key, but then stopped when she realized the move would leave her completely exposed. In a handful of cases, the drivers sped off in a panic at the sight of an approaching foreigner.
In the course of the campaign, we’ve noted the pervasiveness of drivers who sit in parking lots, compulsively tinkering with cellphones, game sets, radios and TVs in a practice that I term “gadget masturbation.” The availability of so much electronic amusement turns the car into an insulated entertainment booth which not only belches pollution but discourages drivers from getting out and stretching their legs.
There were some who completely stonewalled us, refusing to even lower the window a crack to listen, let alone turn off the engine. But these were notable in their scarcity. Out of 200 conversations, there were only seven —a mere 3.5 percent—who completely ignored us. Unsurprisingly, two were driving Mercedes and one a BMW. On the other hand, a man in a Jaguar was very polite and turned his engine off, apologizing for his carelessness. Draw your own conclusions.
To download your own “Stop Idling Yellow Card,” click here.


















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4 Comments
Never have I agreed with a “Last Word” article more! Absolutely fantastic work, I will join in with this campaign 100%!
I often thought of doing the same thing, but didn’t know how to go about it, also my Japanese is not that good to confront someone (politely) and explain how ridiculously wasteful they are being.
One thing I wonder though, is this phenomenon restricted to Japan?
I don’t remember seeing in in the UK. I wonder if it’s related to not having enough peaceful places to chill out in?
Who knows…
It would also be nice to do something about all the taxis waiting or lining up in front of the station. They should all go electric, or hybrid at least…
Dear Shibly,
Well done for doing something helpful. Change like this happens locally and can grow globally.
I suggest talking to local schools to educate young’uns so they can penalize their moms and dads
from an early age AND getting into the habbit of seeing the benefits of their actions and doing the same.
Also, I don’t know if your campaign was also partly conducted in Tokyo but I can imagine results will differ from city/town to city/town!
Talk to schools, shoot videos and post them on YouTube, try to get on NHK, speak to some local advertisers to share the costs of printing by providig them a line or two of ad space on your yellow cards.
Good luck.
Your friend in the land of the polar bears chasing the queen!
Dear Shibly,
that was a great article. After reading it, I immediately got online to write this comment.
Congratulations on your success.
Face-to-face, polite confrontation is a very powerful tool.
By the way, isn’t it illegal to leave a car unattended with the keys in the ignition and the engine running!?
In my 6 years in Japan, I’ve seen it on several occasions. People leave their car running while they go to the toilet, buy something from the convenience store, etc.
I’ve even seen Tokyo’s finest (police) do it. It’s dangerous for obvious reasons, it’s a waste of resources and contribution to pollution, and just plain stupid, IMHO.
Please, can you make a yellow card for smokers in Japan.
1)For smokers that are blatantly smoking cigarettes in Non-Smoking areas.
2)For smokers that are smoking in restaurants/public places where there are no 禁煙 signs, but they could do with a lesson in consideration for others (Asthma sufferers, Children, Babies, Human beings etc)
I once confronted a smoker smoking outside of the “Smoking Area” on a Tokyo train station platform (pre total smoking ban for Tokyo JR stations 2009). He was so annoyed with my request (タバコやめてください), he continued smoking all the way onto the train! I gained the attention of other passengers on the train. He was obviously embarrassed and getting angry. The confrontation spilled out onto the next train platform, where eventually train station staff intervened. The smoker was free to get back onto the train. I was free to continue on my commute to work.
Moral of the story…