25Oct
IEEE ClimateChain Global Hackathon 2026: four weeks of building ahead of COP31
Open to students, researchers, developers, designers and changemakers worldwide. The hackathon runs for four weeks, from 28 September to 25 October 2026, and projects are due by 11:59 p.m. UTC on 25 October. Winners will be announced on 10-21 November 2026 at the UN climate conference COP31, and prizes and certificates are distributed before 31 January 2027.
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