The scientists compared temperature reconstructions from sediments in the ocean floor with a global climate simulation model which aimed to map climate three million years ago.

科学家们为描绘三百万年前气候，利用全球气候模拟模型比较了复原气温与大洋底下沉积物。

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The complex of climate model has been improved significantly and many valuable results of climate numerical simulation and predictions have been achieved.

这主要表现在气候模式水平的迅速提高，以及利用气候模式进行了大量的气候数值模拟和预报试验研究工作。

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Specific subjects include: atmospheric chemistry and physics, atmospheric dynamics, climatology and climate change, weather simulation, weather forecasting, climate modeling and mathematical theory;

具体课程包括：大气化学和物理学，大气动力学，气候和气候变化，气候模拟，气象预报，气候模拟和数学理论。

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Considering that, a few years ago, it was rare to get the computer time needed to do even a single geoengineering simulation with a state-of-the-art climate model, this investment of time and effort marks a big step forward.

ECONOMIST: Geoengineering