Orbital forcing strongly influences seasonal temperature trends during the last millennium

L. Lucke. was supported by a studentship from the Natural Environment Research Council (NERC) E3 Doctoral training partnership (grant number NE/L002558/1). A. P. Schurer and G.Hegerl. were supported by NERC under the Belmont forum, Grant PacMedy (NE/P006752/1). The authors acknowledge the World Climate Research Program's Working Group on Coupled Modeling, which is responsible for CMIP, and thank all the climate modeling groups for producing and making available their model output. The authors acknowledge the Northern Hemisphere Tree‐Ring Network Development (N‐TREND) and the Past Global Changes (PAGES) project for providing publicly available data.