the permafrost 永久凍土帯

University of Cambridge

"These results show just how much we need urgent action to slow the melting of the permafrost."

Emissions from melting permafrost could cost $43 trillion

New analysis of the effects of melting permafrost in the Arctic points to...

CAM.AC.UK

Near Arctic, Seed Vault Is a Fort Knox of Food 
By ELISABETH ROSENTHAL
A vault buried under the permafrost in Norway has begun to receive millions of seeds, an effort to save the genetic legacy of vanishing plants.


 vault1


  
━━ n. アーチ形屋根, アーチ形天井（型のもの）; アーチ形天井のある場所［通廊］; 天空 (the ～ of heaven); 地下貯蔵室; 貴重品保管室; （銀行などの）金庫室; 地下納骨所; 【解】（口蓋などの）蓋(がい).
━━ vt. アーチ形天井に造る［を張る］.
 vault・ed　━━ a.
 vault・ing¹　━━ n. アーチ形天井建築物; ((集合的)) アーチ（形天井）.

永久凍土帯(Pemafrost)