What are climate & sustainability hackathons in Europe?

Hackathons addressing climate change, sustainability, clean energy, and environmental challenges. This page narrows that topic to events across Europe.

How many climate & sustainability hackathons are there in Europe?

This page highlights 12 climate & sustainability hackathons from the current Europe discover list. 1 are online, 10 are in-person, and 1 are hybrid.

What are climate & sustainability hackathons?

Hackathons addressing climate change, sustainability, clean energy, and environmental challenges.

How many climate & sustainability hackathons are there?

There are 12 climate & sustainability hackathons listed, with 9 upcoming events.

How do I find the best hackathons to join?

HackathonRadar tracks thousands of hackathons worldwide. You can filter by city, category, date, and prize pool to find events that match your interests and skill level.

Climate & Sustainability Hackathons in Europe

Explore 12 climate & sustainability hackathons across Europe. Browse upcoming European events by country, city, format, and prize pool.

Hackathons

Avg Prize

$15K

Organizers

Climate & Sustainability Hackathons in Europe

Wednesday, October 21, 2026

Ideathon

Thursday, October 22, 2026

Climate Innovation Challenge

Saturday, October 24, 2026

WATT THE HACK : Energy & AI Hackathon

Past hackathons

Monday, October 19, 2026

AI for Good Hackathon Norway 2026

Monday, October 12, 2026

B.A.L.L.S. hackathon

Saturday, October 10, 2026

Hackathon Climate U 2026

Saturday, October 3, 2026

AdaHack 2026

Tuesday, September 29, 2026

EXPECT Hackathon on Advanced Data Processing for Climate Research

Sunday, September 27, 2026

YFN x EU Energy Hackathon

Saturday, September 26, 2026

N-Green: Neighbourhood Action Hackathon

Thursday, September 17, 2026

Innovate for Humanity: Hackathon - Pitch, Vote & Mingle

ERA / Keele - Smart Energy Networks & Low Carbon Generation Technologies

Saturday, September 12, 2026

📍London 🌀 Generalist World Hackathon

Tuesday, September 1, 2026

MunichTech EXPO

Wednesday, August 26, 2026

Build the Future of Voice AI: Hackathon 2

Explore More

Frequently Asked Questions

What are climate & sustainability hackathons in Europe?

How many climate & sustainability hackathons are there in Europe?

What are climate & sustainability hackathons?

How many climate & sustainability hackathons are there?

How do I find the best hackathons to join?