Yul So Nov 19, 2025 www.unist.ac.kr Ulsan National Institute of Science and Technology (UNIST) announced on the 21st that Professor Baek Jong-beom’s team has developed a method to decompose nitrous oxide (N₂O), a greenhouse gas 310 times stronger than carbon dioxide, almost completely at room temperature. Using a mechanical-chemical process, the researchers broke down N₂O through the impact and friction of small beads inside a ball mill by containing nickel oxide catalysts. T