Indeed, experts say, there could easily be periods in the next few decades when the region cools and ice grows.
Under these conditions, ice grows in a single layer which gets progressively thicker.
After more days of walking, the ice grew thin, the water beneath shallow.
I did not know, but ice underneath a blanket of snow grows soft.
The oceans of Inferno, never very deep to begin with, receded at incredible speed as the ice grew ever deeper in the north.
The ice was growing a little thinner on the cavern walls here, the air a bit warmer.
He used to be much easier to see, but every year the ice grows and he sinks farther away.
"It's not too cold under all that ice for plants to grow?"
Black ice grows downward from the bottom of the existing ice surface.
There were two rivers ahead, the movement of the water meant that the ice would never grow very thick.