Climate & Sustainability Hackathons

Explore 50 climate & sustainability hackathons. Hackathons addressing climate change, sustainability, clean energy, and environmental challenges.

Hackathons

45

Avg Prize

$13K

Organizers

32

Sunday, July 5, 2026

Ongoing

Flushing Tech Bi-Weekly Hackathon

In Person
Nov 1, 2025 – Jul 25, 2026Queens, United States
Healthtech
Social Impact
Climate Tech
Ongoing

A Professional Hackathon

Online
Feb 26 – Nov 26, 2026Online
Sustainability
Social Impact
Innovation
Ongoing

Hackathon 2026 Challenge

Online
Mar 1 – Dec 18, 2026TechHub Africa LLCOnline$1K
Climate Tech
Cloud Computing
Ongoing

Tech to Treasure Hackathon

In Person
Mar 28 – Aug 1, 2026bin to betterSan Jose, United States$450
Climate Tech
Edtech
GlidInterview CakeCodeCraftersCleanShot XIncogniNordPass
Ongoing

XTARD 2.0

In Person
Mar 29 – Jul 31, 2026Sri Sairam Engineering College (SSEC), ChennaiNandambakkam, India$600
Social Impact
Innovation
Sustainability
Ongoing

GenZ Can Hack 2026

In Person
Apr 1 – Aug 22, 2026Kids for Kids Toronto Coding ClubToronto, Canada$1K
Data Science
Web Development
Climate Tech
SC4K
Ongoing

HackfiniX 2026

In Person
Apr 1 – Aug 14, 2026Cambridge Institute of Technology North Campus, BengaluruBengaluru, India$15K
Cloud
Climate Tech
Edtech
Ongoing

NextWave: A Youth Climate Data Challenge

Online
May 1 – Oct 30, 2026Online
Data Science
Climate Tech
Ongoing

Devnovate Summer of Code

Online
May 20 – Aug 20, 2026HackWithIndiaOnline
Open Source
Edtech
Climate Tech
Ongoing

Biothon 2026

In Person
May 25 – Jul 22, 2026Marwadi University (MU), GujaratRajkot, India$2K
Healthtech
Climate Tech
Cloud
Ongoing

The Rice University Urban Sustainability Hackathon

Online
Jun 23 – Sep 18, 2026Rice UniversityOnline$18K
Climate Tech
Data Science
Web Development

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Past hackathons

Recently ended — many run again.

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