FIGURE 1-1 



GLOBAL TEMPERATURES AND SEA LEVEL TRENDS IN THE LAST CENTURY 



0.4 - 



Relative 

 Temperature 2 



(°C) 



10 - 



Global 



Sea Level 



(cm) 



5 - 



-5 



1880 



1920 



1960 



Year 



Sources: Temperature curve from: HANSEN, J.E., D. JOHNSON, A. LACIS, S LEBEDEFF, D 

 RIND, AND G. RUSSELL, 1981. Climate Impact of Increasing Atmospheric Carbon Dioxide, 

 Science 213:957-966. Sea level curve adapted from: GORNLTZ, V., S. LEBEDEFF, and J. 

 HANSEN, 1982. Global Sea Level Irend in the Past Century. Science 215:1611-1614. 



