Recent studies reveal that climate change is subtly altering Earth’s shape and increasing the length of days. Melting polar ice sheets are redistributing mass towards the equator, causing the planet to bulge and slow its rotation. This effect, highlighted in a 2024 PNAS study, is accelerating day lengthening more rapidly than natural processes. These changes could necessitate negative leap seconds, affect space travel, and alter weather patterns, underscoring the urgent need to address climate change.