🗓 On September 20–29, 2026, the International Olympiad on Climate Change and Environmental Issues – IOCE 2026, will be held in the Sirius Federal Territory in Russia. The Olympiad is organized by the Sirius Federal Territory and the Talent and Success Educational Foundation, with the support of the Ministry of Education of the Russian Federation. The working language of the Olympiad is English though the participants may use a glossary provided by the Scientific Committee and pre-translated into their national languages by the team leaders. Each country can be represented by one team consisting of 2–5 students aged 14–18. Each team accompanied by one leader and up to two observers. The Olympiad consists of two rounds - theoretical and practical. To participate in the Olympiad, registration on the official Olympiad website https:/ioce.siriusolymp.ru/ is required. Registration is open until August 24, 2026.