Episode Details

A recent study suggests the next ice age will likely begin in about 11,000 years unless emissions change the effects of natural climate cycles. 

最近的一项研究表明，除非排放改变自然气候周期的影响，否则下一个冰河时代可能会在约11，000年内开始。 

An ice age is a period of reduced temperatures causing ice to cover large areas of the northern and southern parts of the world. 

冰河时代是温度降低的时期，导致冰覆盖了世界北部和南部地区的大面积。 

A group of scientists studied changes in the shape of the Earth’s orbit around the sun, the tilt of the Earth’s axis and the movement of the axis itself, called a wobble. These three motions are believed to happen in cycles. The Serbian scientist Milutin Milankovitch developed a theory about 100 years ago that these cycles affected Earth’s long-term climate. 

一群科学家研究了地球围绕太阳的形状的变化，地球轴的倾斜以及轴本身的运动，称为摇摆。 据信这三个动作是在周期中发生的。 塞尔维亚科学家米兰科维奇（Milutin Milankovitch）大约在100年前开发了一种理论，即这些周期影响了地球的长期气候。 

The team noted that small changes in Earth’s orbit around the Sun caused predictable cycles of warming and cooling over a period of about 100,000 years. 

该小组指出，在大约100，000年的时间里，地球围绕太阳围绕太阳的轨道的小变化导致了可预测的变暖和冷却周期。 

These findings permitted the team to determine how the three factors of tilt, wobble, and the shape of Earth's orbit might have affected the Earth’s climate over the last 900,000 years. 

这些发现使团队能够确定倾斜，摇摆和地球轨道形状的三个因素如何影响过去900，000年的地球气候。 

The group published its findings in Science on February 27. 

该小组于2月27日在科学上发表了研究结果。 

The scientists examined a million-year record of climate by looking at ice sheets across the northern half of the world and deep ocean temperature