HUGE JUMP IN CO2 LEVELS
FROM 1.5ppm/yr AVERAGE INCREASE TO 2.54ppm/yr

Atmospheric CO2 levels derived from measurements in ice cores (Etheridge and Wookey 1989, Etheridge et al. 1996, 1998, Morgan et al. 1997) and direct measurement from Mauna Loa (Keeling and Whorf 2002)  Graph: Mark Howden, CISRO, Australia
Atmospheric CO2 levels derived from measurements in ice cores (Etheridge and Wookey 1989, Etheridge et al. 1996, 1998, Morgan et al. 1997) and direct measurement from Mauna Loa (Keeling and Whorf 2002)