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10/11/2022 - The celestial bodies of the solar system also influence the Earth's climate cycles. The question of how this astronomical "heartbeat" changed the Earth's climate in an early warm period was investigated by an international team of geo- and climate researchers. Using simulations and data from drill cores, they were able to prove that astronomical cycles - in addition to shifts in continental plates and fluctuating CO2 levels in the atmosphere - drove climate changes around 200 million years ago. These new data from past warm climate phases with higher greenhouse gas concentrations can also be interesting for improved forecasts. The results were published in the scientific journal PNAS.