Labels also have special number codes, which represent the following: 1  0 = means minimal hazard. 2  1 = means slight hazard. 3  2 = means moderate hazard. 4  3 = means serious hazard. 5  4 = means severe hazard.
A good way to summarize the paper by Snelling and Matthews is by presenting the timeline given in the article and accompanying poster: AiG Ice Age Timeline. 1  2350 B.C.âNoahs flood. 2  2350 to 2250 B.C.âAntarctica becomes covered by forests, then gets covered by its ice cap.  2250 to 2000 B.C.âIce age on the rest of Earth.
The Ice Ages episode of In Our Time with Melvyn Bragg discusses many fascinating concepts surrounding Earthâs glacial history and Climate Change. 1  There have been at least five major Ice Ages (or glaciations) in Earthâs history.  Earth has been ice-free, even in the high latitudes, for about 85% of its history.