Temper
atur
e
Anomaly
(˚C)
Year
.6
.4
.2
0
-.2
-.4
1880
1900
1920
1940
1960
1980
2000
Annual Mean —
5-year Running Mean —
-2.1 -2 -1.5 -1
-.5
.5
1
1.5
2
2.6
2004 Annual Mean Surface Temperature Anomalies (˚C)