气候学家警告说即使是全球平均气温轻微的上升，将导致大部分的世界上的森林走向毁灭。
Climate scientists have warn that even slight increases in the average global temperature could push much of the world's forest toward extinction.
而少数科学家对上面的推论保持着怀疑态度：其中一些人为最近一些基础牢固的数据表明地球平均气温升高是太阳辐射的自然变化所致，而这种变化趋势正在走向终结；
Some think that recent, well-grounded data suggesting the Earth’s average temperature is rising are explained by natural variations in solar radiation, and that this trend may be coming to an end.
趋势表示最近30个周期的平均延时相对于总体平均延时的走向。
The trend is how the average of the last 30 intervals relate to the overall average.
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