Global warming will result in the expansion of permafrost.
is a railway station on the Ryomo Line in Midori , Gunma Prefecture , Japan , operated by East Japan Railway Company -LRB- JR East -RRB- .. Midori. Midori, Gunma. Gunma. Gunma Prefecture. JR East. JR East. Ryomo Line. Ryomo Line. Gunma Prefecture. Gunma Prefecture. East Japan Railway Company. East Japan Railway Company