Global Average

1976-2002

1880-2002

Increase in the average global temperature (˚C)

0.7

0.8

Increase in total heating, ΔTH required for this increase in temperature Wm⁻²

7.7

9.4

Increase in radiant emittance (DRad_UAvg) Wm⁻²

3.7

4.2

Change in solar radiation (ΔSol) Wm⁻²

0.0

0.0

Increase in back radiation (ΔBR) Wm⁻²

7.7

9.4

Increase in evaporative power (ΔEvap_Avg) Wm⁻²

3.5

4.7

Change in thermal convective power (ΔConv_Avg) Wm⁻²

0.4

0.5

Eff _ΔTHTotAv

0.73

0.77