A new study published in July 2024 reveals that climate change is causing Earth's days to lengthen at an unprecedented rate. While Earth's days have naturally been increasing by a few milliseconds per century due to lunar gravity, the melting of polar ice sheets is ＿＿（41）＿＿ this process significantly. ＿＿（42）＿＿ Arctic and Antarctic ice melts, the restructuring of mass from poles to equator is further flattening Earth's shape. Since 2000, the day length has increased ＿＿（43）＿＿ about 1.33 milliseconds per century, up from 0.3-1.0 milliseconds in the 20th century. If greenhouse gas emissions continue unchecked, this rate could ＿＿（44）＿＿ 2.62 milliseconds per century by 2100. Although people are generally ＿＿（45）＿＿ , these changes have important meanings for global timekeeping systems. The changes may require adjustments to Coordinated Universal Time (UTC), potentially affecting satellite navigation, telecommunications, trade, and space travel operations.