Glacial Period in Time
This page is the CodyCross answer for the clue below from Welcome to Japan, Group 580, Puzzle 4 (Shibuya Crossing).
Question is: Glacial Period in Time
and the answer is: ICEAGE
Word Meaning:
ICE AGE — (sciences) A period of long-term reduction in the temperature of Earth's surface and atmosphere, resulting in the presence of major polar ice sheets that reach the ocean and calve icebergs.
Definitions from Wiktionary.