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Code for Earth is an innovation programme run by the European Centre for Medium-Range Weather Forecasts (ECMWF). Its aim is to drive innovation and open source developments in the Earth sciences community - supporting developments in weather, atmosphere, and climate, Copernicus and Destination Earth (DestinE). Learn more about ECMWF, Copernicus and DestinE.

Since 2018, each summer, selected developer teams work together with experienced mentors from ECMWF and partner organisations on innovative projects. These projects are related to the broad scope of activities at ECMWF, including data science, weather, climate or other earth sciences, visualisation and more.

Browse through the Code for Earth 2025

challenges on GitHub. Ask questions and together with ECMWF mentors, you can tailor your submission. Submit your proposal 

by 01 April 2025. Links coming soon! 

The Code for Earth 2025 teams will be announced on 29 April 2025. You can follow Code for Earth on X and subscribe to the newsletter to get all updates.

The four-month long coding period starts on 02 May 2025 and ends on 31 August 2025. During this time, the selected teams will work with their Code for Earth mentors. These are experts in earth sciences like weather, climate and climate change, atmosphere and air quality or in technology areas like AI/ML, cloud computing, applied data science or open source software development.

The Code for Earth Day is a celebratory completion of the programme. This year the event will be hosted at ECMWF's headquarters in Bologna, Italy.

Teams will be invited to present their project results.

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