Antarctic ago, originally was not world of ice and snow, but due to climate change, the moment has become a frozen desert. Department of Earth Sciences, University of Hong Kong assistant professor Liu Zhonghui, United America, Yale University, Harvard University and several other scholars in conducting research are leading to global cooling at that time the rapid expansion of Antarctic glaciers of important reasons, the study will be more up-to-date authoritative journal "Science" ( Science) published.
Served in the Department of geology and geophysics at Yale University, last year joined the University of Hong Kong Liu Hui for the thesis of the first author of the study in the United States two years ago by the National Natural Science Foundation and Yale University was financed, he and Mark Pagani, Yale University scholar and David Zinniker, Harvard University, Sunita R. Shah and Ann Pearson number of scholars, such as cooperative research.
Zhonghui Liu said that before temperature data, there is no record of the study are the biggest obstacle, so they are organic compounds in marine sediments through the distribution of characteristics, then the projection of global sea surface temperature and found that at the time of the high latitudes temperature, than previous studies estimated temperature, higher than at least ten degrees Celsius, while the glacier expansion in the process of sea surface temperature, but also significantly reduced by about five degrees Celsius.
He also said that, at present, computer technology is still difficult to accurately project the Earth's greenhouse climate change, because of system is mainly to adjust the content of carbon dioxide projections, should be added to other factors, trust can be a more accurate result.
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