I created this innovation because one of my quietest students looked at her lunch tray and asked me a simple question: "Teacher, why isn't our turpotu on the menu?"
I didn't have a good answer. So we turned her question into our mission.
I saw that my students were learning about climate change only as a distant, global problem—something happening to polar bears, not to them. Meanwhile, in our own city of Aydın, tourism was pushing traditional wild greens off menus and meat consumption was rising. Our cultural heritage was disappearing. Our carbon footprint was growing. But no one was connecting these two things.
I created the Digital Carbon Calculator because my students needed a tool to make the invisible visible. They needed to see that a plate of turpotu with olive oil leaves behind only 0.02 kg of CO₂, while a portion of İskender kebab leaves behind 2.7 kg.
But I also knew that data alone doesn't change hearts. That's why my students photographed elderly market vendors, designed infographics, and created an Instagram campaign. Art made the science emotional. Science made the art credible.
I created this innovation to prove that the most effective response to climate change might not come from a new technology—but from honoring what our grandmothers already knew.
Our innovation looks like a 14-year-old girl typing Python code on a school computer, comparing the carbon footprint of her grandmother's turpotu recipe with a restaurant's Iskender kebab.
It looks like my students walking through Aydın's local markets, not as tourists, but as researchers—interviewing elderly women who have been selling wild greens for decades, photographing their weathered hands holding kenger and radika, listening to stories about how their mothers taught them to clean turpotu.
It looks like a classroom where science meets art. One group of students analyzes IPCC reports and calculates emission factors. Another group designs infographics and an Instagram campaign. They come together to build a Digital Carbon Calculator that translates abstract CO₂ numbers into everyday equivalents: "This meal equals driving X kilometres."
It looks like our school canteen manager receiving a policy recommendation signed by 50 students, asking for a weekly "Local Wild Greens Day." And a week later, turpotu appears on the menu.
It looks like my quietest student standing in front of a local official, presenting evidence with confidence—not because she memorized facts, but because she lived the research.
Most importantly, our innovation looks like a student looking at her lunch tray and saying: "I know what this costs the planet. And I choose this."
First, through open source. My students published the Python code for our Digital Carbon Calculator on GitHub. Any teacher, anywhere in the world, can download it, adapt it to their local foods, and use it in their classroom. No permission needed. No cost. Just a working tool.
Second, through other teachers. I have trained 15 teachers from 5 different schools in Aydın on how to implement the Green Tables model. Three of them have already started their own versions—one focusing on local herbs, another on seasonal vegetables. I share all lesson plans, survey templates, and policy writing guides freely through our Instagram page (@yesiladimlarbilsem) and a shared Google Drive folder.
Third, through student ambassadors. My students now run workshops for younger students in our school. They teach Python basics and carbon literacy to 12-year-olds. They also present at local teacher conferences. When students teach other students—and when they stand in front of adults and speak with authority—the message spreads faster than any curriculum ever could.
Fourth, through local policy. Our policy recommendations didn't stay in a folder. The school canteen now has a weekly "Local Wild Greens Day." One restaurant in Aydın added a "Green Menu" section. The Provincial Directorate of National Education has invited us to share our model with other schools. We are in conversations to make carbon footprint labeling a pilot program in school canteens across the province
Start with one question. Take your students to the school canteen or a local market. Ask them: "What is disappearing from our plates?" Let them find the answer.
Then, follow four simple steps.
First, investigate. Have your students interview local vendors, analyze menus, and collect data on traditional foods. Use free tools like Google Forms or Excel. No coding needed yet.
Second, calculate. Download our Python Carbon Calculator from GitHub. It is free and open source. Replace our local dishes with yours. Compare carbon footprints. Show your students the numbers.
Third, create. Let your students choose their medium. Photography, infographics, social media, posters. Art makes data emotional. Science makes it credible. Let them tell the story their way.
Fourth, act. Write policy recommendations together. Present them to your school principal, local restaurants, or municipal officials. One small change—a weekly local food day in your canteen—is already a victory.
You do not need to be a coding expert. You just need curiosity and one week. Start small. Start with your students. Start today.
