Global climatic change is not only a environmental question, but also energy, economic and political issue.

全球气候变化不仅是环境问题，而且是能源问题、经济问题和政治问题。

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Of course, this is just one possible mechanism of global climatic change.

当然，这只是其中一个影响全球气温变化的可能的因素。

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It analysis the situation of global climatic change, suggest main scientific problem of global climatic change.

本文分析了全球气候变化的研究现状，并提出了全球气候变化中的重大科学问题。

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And over most of the continent, rainfall is projected to decrease over the coming decades, a consequence of global climatic change.

BBC: Woman pumps water from standpipe. Image

The shifts in these ecosystem boundaries provide an index of global climate change, which can be observed and compared in all continents of the world, using standard sets of climatic measurements, such as precipitation and temperature.

UNESCO: 83e