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News and Views
Nature 456, 47-48 (6 November 2008) | doi:10.1038/456047a; Published online 5 November 2008
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Canada Excellence Research Chair in Biofuels and Biorefining Innovation
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Global change: Climate's astronomical sensors
Michel Crucifix1
Abstract
A re-evaluation of the relationship between Earth's orbital parameters, ice-sheet extent and ocean circulation sets further puzzles for those trying to disentangle cause from effect in long-term climatic changes.
Earth's climate 'feels' the slow changes in the parameters of our orbit around the Sun. The great ice sheets of the Northern Hemisphere are one sensor, in that they are sensitive to the amount of solar energy they receive in summer.
- Michel Crucifix is at the Institut d'Astronomie et de Géophysique G. Lemaître, Université catholique de Louvain, BE-1348 Louvain-la-Neuve, Belgium.
Email: michel.crucifix@uclouvain.be
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