1900環境一般 永久凍土の温室効果ガス排出の鍵を握る鉄の循環を発見(Scientists find iron cycling key to permafrost greenhouse gas emissions) 2022-12-14 オークリッジ国立研究所(ORNL) Iron content gives a reddish hue to an area of ponded water in the Arctic permafrost. ORNL ... 2022-12-15 1900環境一般