390
2.5
380
370
2.0
360
350
1.5
340
330
1.0
320
310
0.5 1960
1970
1980
1990
2000
2010 300
Data from Mauna Loa
10 GTC
850 GTC
Annual Changes in Atmospheric in Gigatonnes Carbon [GTC]
Linear Trend Annual Changes in Atmospheric in Gigatonnes Carbon [GTC]
Series Change in Atmospheric in PPMV 1969 - 2011
9 GTC
Overall Changes in Atmospheric in PPMV
400
Annual Changes in Atmospheric in PPMV
Linear Trend Annual Changes in Atmospheric in PPMV
Series Change in Atmospheric in PPMV 1969 - 2011
8 GTC
800 GTC
7 GTC
6 GTC
750 GTC
5 GTC
4 GTC
700 GTC
3 GTC
2 GTC
650 GTC
1 GTC
0 GTC
1960
1970
1980
1990
2000
Data from Mauna Loa
2010
600 GTC
Overall Change in Atmospheric in GTC
Annual Changes in Atmospheric in GTC
Annual Changes in Atmospheric in PPMV
This shows that today we are adding CO2 to the atmosphere
at more than twice the rate we were 50 years ago