text: I welcome articles from you that show the IPCC models have skill on the multi-decadal time periods. Until you (or others) do, all the IPCC-type models can tell us is that the climate system is sensitive to the addition of CO2, other greenhouse gases, aerosols and land use/land cover change. We do not need a multi-hundred million dollar modeling program to provide regional and local impact scenarios when the models have shown no skill at doing this on multi-decadal time scales (even when run in a hindcast mode).