1. Ice Core Data IB Biology

4. © Australian Antarctic Division © New Scientist : Environment

5. Levels during the last ice age © Dennis Hartmann: Universoty of Washington: Department of Atmospheric Sciences

6. Out of the ice age

7. Since the Industrial Revolution Concentration of Carbon Dioxide from trapped air measurements for the DE08 ice core near the summit of Law Dome, Antarctica. (Data measured by CSIRO Division of Atmospheric Research from ice cores supplied by Australian Antarctic Division)

8. The melting Arctic ice The length of the melt season inferred from surface temperature weekly data has been increasing by 9, 12, 12, and 17 days per decade in sea ice covered areas © NASA

9. Is it really getting warmer 1979 2003 © NASA

10. Now try your ice core analysis worksheet!