Question

Why are there increasing problems with construction in permafrost regions?

A Fewer students studying geothermic engineering

B Global warming

C Booming arctic populations

D Longer freeze-thaw cycles

Answer 1

It is melting due to global warming and is altering ecosystems and damaging roads and buildings across Russia. ... There are increasing problems with construction in permafrost regions due to climate change and the increasing instability of permafrost.

Answer 2

A permafrost region is a thick subsurface layer of soil that remains below freezing point throughout the year occuring cheifly in the high latitude and altitudes.

Construction is having increasing problems in those regions due to the instability of the area for global warming . It is damaging the ecosystems and damaging the existing roads and buildings.