Vostok Ice core report

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Vostok Lab Report
Title: Global warming, a natural interglacial change on temperature.

Global warming has been widely discussed all around the world as it is an issue that affects the living of all mankind in the world. It is argued that the ‘anthropogenic’ changes posse more influence on the climate change to the Earth, compared to the ‘naturally driven’ glacial and interglacial changes in temperature. This report is based on the Vostok Core by faculty at Columbia University as an example for us to investigate global climate change. Author of this report believes global warming is just part of the long term temperature fluctuation during the interglacial period as there is no convincing and valid evidence that shows
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CO2, dust and CH4 are the main source of greenhouses gases, which are produced mainly by human activities. If that is the case, the composition of CO2, dust and CH4 should be coherent to the change of temperature of the Earth. Yet, it is not shown from the data.
Moreover, there are lots of different factors that keep affecting the temperature of the Earth. The energy of the sun, the albedo effect, Milakovitch Cycles, plate tectonics are the examples of the factors that affect the temperature.

To conclude, based the given data, it is difficult to prove that anthropogentic changes are stronger than the glacial and interglacial changes in temperature, as there are not enough valid evidence from the lab. Studying climate change is not a short term issue. However, due to the limited technology level and the knowledge of the Earth, we could not obtain concise data to investigate the climate change. The ice core could be one of the proxies that help us to understand the climatic condition in the past. It is suggested to compare more other proxies, in order to draw conclusion of the main reason and the trend of climate change.

Dans guard, W., H.B. Clausen, N Gundestrup, C. U. Hammer, S. J. Johnsen, P. M. Kristinsdottir, and N. Reeh, A new Greenland deep ice core Science, 218,
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