Earth is spinning faster
地球自转加速一天变短?
The Earth is spinning faster than it has in five decades, scientists say.
科学家表示，地球现在自转的速度比过去50年都要快。
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Since last year, a full day has been taking less than the normal 24 hours.
从去年开始，一整天的时间就比正常的24小时要短。
July 19, 2020, was the shortest day since scientists began keeping records in the 1960s - 1.4602 milliseconds shorter than the full 24 hours.
2020年的7月19日是自上世纪60年代科学家开始做记录以来最短的一天，全天比24小时缩短了1.4602毫秒。
A 2015 study published in Science Advances suggests global warming may be the reason behind the Earth's speedier rotation.
2015年发表在《科学进展》上的一项研究表明，全球变暖可能是地球自转速度加快的背后原因。
As glaciers melt, mass redistribution is causing the planet to shift and spin faster on its axis.
随着冰川融化，质量重新分布导致地球自转速度加快。
"It's quite possible that a negative leap second will be needed if the Earth's rotation rate increases further," Peter Whibberley, a senior research scientist at the National Physical Laboratory, told The Telegraph. "But it's too early to say if this is likely to happen."
英国国家物理实验室的高级研究科学家彼得·韦博利告诉《每日电讯报》：“如果地球自转速度进一步加快，很可能需要加上一个负闰秒，但现在还为时尚早，说不准这种情况是否可能发生。”
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