The mark of man is found by comparing model predictions of warming with changes in the real data (radiosonde 1963-1988). The resemblance of the combined CO2 + SO4 image (from Tayler Penner 1994) with the observed pattern is mostly in the stratospheric cooling and the more pronounced warming in the southern hemisphere. (See SAR p428. Colour images adapted from Santer’s original paper later published in Nature 4 July 1996.)
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Summary constucted from Fig 1 on page 41 of Santer et al, ‘A Search for human influences on the thermal structure of the atmosphere’ Nature, Vol 382. Modelled and observed zonal-mean annually averaged changes in the thermal structure of the atmosphere.
