Snowball Earth — Chapter 4

Chapter 4 — page 1

Chapter 4 — page 2

Chapter 4 — page 3

Chapter 4 — page 4

Chapter 4 — page 5

Chapter 4 — page 6

Chapter 4 — page 7

Chapter 4 — page 8

Chapter 4 — page 9

Chapter 4 — page 10

Chapter 4 — page 11

Chapter 4 — page 12

Chapter 4 — page 13

Chapter 4 — page 14

Chapter 4 — page 15

Chapter 4 — page 16

Chapter 4 — page 17

Chapter 4 — page 18

Chapter 4 — page 19

Chapter 4 — page 20

Chapter 4 — page 21

Chapter 4 — page 22

Chapter 4 — page 23

Chapter 4 — page 24

Chapter 4 — page 25

Chapter 4 — page 26

Chapter 4 — page 27

Chapter 4 — page 28