Hack for the Environment - Digital Innovation for Climate, Nature, and Pollution (Hack4Env)

Kick-off: 26 July | Semi-final: 21 August | Finals at the UN (Top 5): 2 September 2025

Welcome! This space serves as your central resource for all hackathon-related information, including guidelines, schedule, links to the masterclasses, and resources.

Please check this page regularly and bookmark it for easy access.

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Hackathon Challenge:

“Develop a data-driven digital solution - like a predictive model, public API, or decision-support tool - to tackle the triple planetary crisis (climate change, biodiversity loss, pollution and waste) and support local decision-makers”

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Ground rules

• Commit & participate actively across 4 weeks (5 weeks if you reach the top 5) ✊
• Collaborate openly and share knowledge 👍
• Respect participants, organizers, and mentors 🙌
• Be ambitious 🚀

**Sign up to our Discord channel** to chat with your group

Key Information & Guidelines

Background, Solution Needs & Ideas

Hackathon Partners

Team Identities and members

Onboarding Checklist

Deliverables & Judging Criteria

Calendar

Video Creation Guidelines

Join Discord Channel - Step by Step

Masterclasses & Mentoring

Masterclass Schedule & Themes

Mentoring & Evaluation

Mentors

Resources

Data Library

Links to the presentation slides

Link to the Semi-final

Links to the masterclasses

For urgent matters, contact us at unep-chiefdigital@un.org