Van Ommen says climate modelling will be needed before we can speculate how the results relate to current warming.
Van Ommen称，气候研究模型应当被建立起来，这样的话，我们就能猜测出目前暖热必将导致的结果。
Previous estimates used cores from regions with low snowfall, van Ommen says, leading to a very gradual trapping of the carbon dioxide in the ice.
早期的估计是通过雪崩地区的核心来完成的，van Ommen 认为二氧化碳气体可能融入到冰层中去。
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