Scientists believe that large-scale climatic fluctuations like the Pacific oscillation affect the global temperature.
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These climatic fluctuations were caused by the glacial and interglacial periods of the Northern Hemisphere.
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Examples include major climatic fluctuations, such as the Azolla event, which created the current Arctic climate.
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The period witnessed a relative stabilization of the Earth's general climate, ending the previous pattern of erratic climatic fluctuations.
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It has been suggested that the current distribution of the species reflect vicariance events following climatic fluctuations in the Amazon.
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And how might natural climatic fluctuations modify and interact with whatever climate changes caused by people are in store for the future?
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Their subterranean lifestyle is energetically expensive but its important for the pocket gopher's survival because it protects them from predators and extreme climatic fluctuations.
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The species that compose African rainforests are of different evolutionary ages because of the contraction and expansion of the rainforest in response to global climatic fluctuations.
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Even so, he said, the ocean could well play some major role in the large, centuries-long climatic fluctuations; variations in the sun's output are another possible cause.
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Georgia's reliance on hydropower leaves the country vulnerable to climatic fluctuations, which requires imports to meet seasonal shortages, but also opens the possibility of exports during wetter conditions.