Hallå Celsius Climate Hackaton honours the memory of Dr. Osmo Pekonen Posted on 2024. January 10. Wednesday2024. October 9. Wednesday by Nóra Somlyódy @celsius2023 ♬ original sound – Hallå Celsius Klimathackaton Go back to the Hallå Celsius! project page Subscribe to our newsletter for course updates and STEAM news! First name Last name Email I accept the privacy policy