in decembmber, there's a a thk layeyer of snow ththat insulatee grground from ththe cold.they forarage for grassss,e hohorses tread d down on thenw anmamake it re c compact. as a r result, the pmafrost stays frozozen, andoesesn't met in the summer. >> tememperatures during arctc summers can reach 40 degrees cecelsius, but o our feet remn cold due to the permafrost didirectly beneaeath this mea. and ththe zimovs sayay the groun their r "ice age parark" is aly stayining colder foror lger. the experiment has also piquedtm germany's s max planck i insti. they've cocome to examinine the reconfigured ecosyemem, an measasure thquanantiti of enviroenentally harmfuful gass circrculating in t the area. >> we're expecting a farorore acve e exchae withthhe atmospsphere, but alalso a grer enrichmement of carbonon in the soil, due to more photosynthisis anthe e morective e pes of grasgrowininhere. >> sergey ziv v putst in m me dramatic tms.. sees hipark as babalegroundetween aew ecosystem anan oldldne that is noequal tohe challge of climate ange. the arct region warmingp twice as fasast