Greena

Inspiration

Our team wanted to create an impact-driven project, and since we all love exercise and health-related topics, we initially explored ideas in that space. But as we brainstormed, we started thinking about nutrition beyond just macros and calories—what about its impact on the planet? That’s when we stumbled upon a shocking realization: our everyday meals consume massive amounts of carbon, land, and water, only for us to devour them in minutes. This pushed us to pivot and create Greena, an app that helps users understand the hidden environmental cost of their meals.

What it does:

A web app that displays the environmental impacts of foods based on meal recipes, like calculating total emissions, water use and land use (can separate each ingredient by these impacts too)

How we built it

We built it using the Flutter framework in conjunction with Dart.

Challenges we ran into

We wanted to use Firebase for the backend but we lacked experience in that department and also realised it was overkill for us and that Flutter and Dart could've just handled all that.

Accomplishments that we're proud of

The cinematography of our video and getting the project to actually output carbon emissions, land use, and water use, as well as adding the comparison between carbon emissions and comparing that to how much an average car emits.

What we learned

We learnt more about the flutter framework and how to design the frontend UI. And also the importance of an MVP when making this project but we exceeded those points and were able to add our own custom features to it, such as converting emissions to real-world examples such as car mileage.

What's next for Greena

Add more features that we planned to implement but didn't due to time restrictions and subpar planning as it's our first hackathon. We also wanted to add images for the food items in our app when you select it, and other equivalence examples like the car one, example like comparing how many swimming pools are used in equivalent to the water used per kg of food or how many houses you can build with this much land use.