The Younger Dryas

1 Open Polar
2 Arctic Mediterranean
3 Eurasian Basin
4 Laurentide
5 Pre-Illinoian
6 The Younger Dryas
7 Allerød Osc
8 Calendar Years
9 Meltwater Pulse 1a
10 Meltwater Pulse 1b
11 North Atlantic Conveyor
12 Classic Maya Collapse