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Global warming and the tipping point

机译：全球变暖和转折点

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摘要

Global warming is a contentious issue. Depending on one's point of view, causes and outcomes can be quite different. It is certain, however, that the earth is constantly changing, evolving into different sets of environmental conditions. The changes, interpreted as good or bad, are conditioned by perspective and personal impact. Geologists tend to take a long-term view of environmental change, e.g. glacial-interglacial cycles and fluctuation of sea level. Global environmental change, such as planetary warming cycles, is triggered by tipping points related to planetary physics viz. the familiar luni-solar cycles. A tipping point or critical moment may be abrupt or multiple, leading to pronounced changes in environmental conditions. Human beings have undeniable powers to damage the environment and to accelerate rates of change catastrophically. Yet Nature has a long-term record for occasionally striking back. Whatever the present trend, the last word will always be political.
机译：全球变暖是一个有争议的问题。根据一个人的观点，原因和结果可能完全不同。但是，可以肯定的是，地球在不断变化，并演变成各种不同的环境条件。这些变化被解释为好还是坏，取决于观点和个人影响。地质学家倾向于对环境变化持长期看法，例如冰川间冰期循环和海平面波动。全球环境变化（例如行星变暖周期）是由与行星物理学相关的临界点触发的。熟悉的luni太阳周期。临界点或关键时刻可能突然或多次，从而导致环境条件发生明显变化。人类拥有无可否认的力量，可以破坏环境并灾难性地加快变化的速度。然而，《大自然》拥有长期反击的长期记录。无论当前趋势如何，硬道理始终是政治。

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