Sentences with phrase «lived massive ice sheet»
However, it's quite a different matter melting a long - lived massive ice sheet up to 1.5 km thick that covers over 70 % of the land surface (as happened at the end of the last glacial period), from melting isolated and much thinner ice caps / sheets that only cover about 11 % of the land surface (i.e. present - day).»
http://www.sciencemediacentre.org/ Not exact matches
It was the cold, dry ice ages that created frigid deserts, life - smothering ice sheets, retreating oceans and massive losses for all life forms.