Deep-sea sediments show how the changing orbits of Earth and Mars are linked to past global warming and the speeding up of deep-ocean eddies.
https://theconversation.com/new-evidence-for-an-unexpected-player-in-earths-multimillion-year-climate-cycles-the-planet-mars-225454?utm_medium=Social&utm_source=Facebook#Echobox=1710282132