Summary:

- This article discusses the daily speedup of glaciers due to weather conditions. It explains that glaciers typically speed up during the day as temperatures rise, and slow down at night as temperatures drop.

- The article cites a study that used GPS sensors to track the movement of glaciers in Greenland, which found that glaciers can speed up by up to 25% during the day compared to nighttime.

- The study suggests that this daily speedup is caused by meltwater lubricating the base of the glaciers, allowing them to slide more quickly over the underlying bedrock during warmer daytime hours.