Projections of future climates use simulations by Earth System Models, which can also be used to simulate the past. The recent batch of simulations created for the upcoming IPCC report, known cryptically as “CMIP6”, include a series of five different past climates. These paleoclimate simulation can be compared with (proxy) observations to not only learn about the perfomance of the models, but also create better projections
Policy Impact of Research:
The application of observational constraints would provide improved future forecasts.