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City Garden
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15 May - 25 October 2025:
From Ideas to Sustainable Impact

2025 Awards & Accolades

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Grand Winner - University Track

SDG #11: SUSTAINABLE CITIES AND COMMUNITIES

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HydroSkin

Self-regulating ​bio-thermal glass:

A highly responsive, passive cooling and thermal regulation system that drastically reduces reliance on active climate control..

The team was awarded with a the Entrepreneurial Program for Rural Development & Sustainability in Akita Prefecture, Japan. One team representative will participate in the SDG Olympiad 2026 in Geneva.

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Grand Winner - Polytechnic Track

SDG #11: SUSTAINABLE CITIES AND COMMUNITIES

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HydroMoss

A cellulose-based hydrogel sheet embedding moss for natural cooling and carbon capture. The chitosan-infused hydrogel retains water, adheres to surfaces, and enables scalable green architecture.

The team was awarded with a Sustainability Experiential Learning Trip to Mana Earthly Paradise in Ubud, Bali.

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1st Runner-up - University Track

SDG #11: SUSTAINABLE CITIES AND COMMUNITIES

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Mission 033

RATIFY: Redefines rodent management with pheromone-based smart traps that attract, detect, and eliminate in a sustainable way.

 

The team was awarded with an internship opportunity with corporate partners.

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1st Runner-up - Polytechnic Track

SDG #11: SUSTAINABLE CITIES AND COMMUNITIES

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Son of Daw

A repurposed electric bus, that is turned into a mobile restaurant. The food bus promotes social sustainability by empowering small businesses and bringing people together through good food and good company.


The team was awarded with an internship opportunity with corporate partners.

Replay of the Grand Finale & Awards Ceremony

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Experiential Learning

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The Crit Survivors

2023 Winner

Activities
Regenerative farming with Jiwa Garden
Food waste treatment with Magi Farm
Tea-making with Made Tea
Students from a Polytechnic university in Singapore learn about sustainability through hands-on experience in regenerative farming, food waste treatement, and tea making in Ubud, Bali
Students from a Singapore Polytechnic university stand for a group photo in Bali, Indonesia as they experience a experiential learning program on sustainability
“I left Bali feeling grateful, inspired, and excited to apply these lessons in my daily life.” - Yi An
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Jeez Associates

2023 Winner

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SGD Summer School Projects
Water Resources in South Africa
Substance Abuse in Arctic Canada
Global Public Health
“Through this program, I gained a deeper appreciation for the importance of ‘thinking globally and acting locally’” – Edward
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Little Green Dot

2024 Winner

Activities
Regenerative farming with Jiwa Garden
Food waste treatment with Magi Farm
Tea-making with Made Tea
“The social enterprises really showed what it means to make the most of what you have, to maximise value in what you do” – Ayu Mein

Hack History

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