Global mean temperatures are rising faster with time
150
0.045
±
0.012
100
0.074
±
0.018
50
0.128
±
0.026
25
0.177
±
0.052
Warmest 12 years:
1998,2005,2003,2002,2004,2006,
2001,1997,1995,1999,
1990
,2000
Period
Rate
Years
¡
/decade
IPCC 2007