"however, a single scientist, dr. ben santer of lawrence livermore national laboratory, rewrote the draft at the ipcc’s request, deleting all five statements, replacing them with a single statement to the effect that a human influence on global climate was now discernible, and making some 200 consequential amendments.
"however, a single scientist, dr. ben santer of lawrence livermore national laboratory, rewrote the draft at the ipcc’s request, deleting all five statements, replacing them with a single statement to the effect that a human influence on global climate was now discernible, and making some 200 consequential amendments.
intergovernmental panel on climate change:122
the balance of evidence suggests a discernible human influence on global climate (considerable progress since the 1990 report in distinguishing between natural and anthropogenic influences on climate, because of: including aerosols; coupled models; pattern-based studies) climate is expected to continue to change in the future (increasing realism of simulations increases confidence; important uncertainties remain but are taken into account in the range of model projections) there are still many uncertainties (estimates of future emissions and biogeochemical cycling; models; instrument data for model testing, assessment of variability, and detection studies) the third assessment report (tar) was completed in 2001 and consists of four reports, three of them from its working groups: working group i: the scientific basis working group ii: impacts, adaptation and vulnerability working group iii: mitigation synthesis report a number of the tar's conclusions are given quantitative estimates of how probable it is that they are correct, e.g., greater than 66% probability of being correct.