elementary radiative-transfer calculations demonstrate that a natural surface global brightening amounting to ~1.9 wm–2 over the 18-year period of study would be expected – using the ipcc’s own methodology – to have caused a transient warming of 1 k (1.8 f°).
elementary radiative-transfer calculations demonstrate that a natural surface global brightening amounting to ~1.9 wm–2 over the 18-year period of study would be expected – using the ipcc’s own methodology – to have caused a transient warming of 1 k (1.8 f°).
intergovernmental panel on climate change:113
intergovernmental panel on climate change
they judge that global mean surface air temperature has increased by 0.3 to 0.6 °c over the last 100 years, broadly consistent with prediction of climate models, but also of the same magnitude as natural climate variability.