AIR TEMPERATURE 



a 



< 



(A 



OC 

 < 



COLD WARM 



1960 _ 



1920 



1880 _ 



C.2 OA 06 

 A°C 

 THE LAST 100 YR 



LEGEND 



1 THERMAL MAXIMUM OF 1940'S 



2 LITTLE ICE AGE 



3 YOUNGER DRYA5 COLD INTERVAL 



-1.5 C 

 THE LAST 1000 YR 



MIO- LATITUDE 



COLD WARM 



O 

 O 



< 



en 



< 



(/) 

 o 



z 

 < 

 (/) 



o 



-10 C 



THE LAST 10,000 YR 



Figure 2-4. Major trends in global climate during the past 10,000 years (National Academy of Sciences 1975). 



16 



