multimillennium-long control run of the Goddard Institute for Space Studies model (GISS-EH)
AOGCM and produced different twentieth-century historical simulations and subsequent
twenty-first-century projections by branching off the control run at various stages of equilibration.
The control run for this model is considered at quasi equilibration after a 1200-yr spinup from a
cold start. The simulations that branched off different points after 1200 … It is often thought that …