A new view on past climate changeFluctuations in the orbital parameters of the Earth are considered to be the trigger for long-term climatic fluctuations such as ice ages. This includes the variation of the inclination angle of the Earth's axis with a cycle of about 40,000 years. Kiel-based marine scientists lead by GEOMAR Helmholtz Centre for Ocean Research Kiel have shown by using a new model that biogeochemical interactions between ocean and atmosphere could also be responsible for climate fluctuations on this time scale. The study was recently published in the renowned journal Nature Geoscience.
The climate history of the earth is marked by periodic changes that are usually ascribed to the solar radiation reaching the surface of the earth. This insolation is not constant over geological time but modulated by cyclic changes in the earth's orbital parameters.
from "Future Ocean" – News http://bit.ly/2M3idOw https://ift.tt/eA8V8J
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