This manuscript is relevant for the broader geoscience community and the broader public/media as it discusses in depth the role of waves in ice that goes beyond commonly considered mechanical break up but includes implications for radiation, melting, and biology, and the feedbacks thereof. It thus also discusses critical missing processes in climate models. The manuscript includes recommendations for future research focused in the role of waves in ice that will direct future research projects and cruises. Compelling visuals make the material particularly accessible for a broader public.

The orientation and size of ice crystals play a crucial role in the movement of ice and, consequently, how ice sheets and glaciers respond to changes in climate. In this study, results from the analysis of the ice crystal fabric of the EastGRIP ice core are presented. This is the first ice core to be collected in an ice stream, uniquely addressing issues related to ice dynamics. As a result, the work provides new insights into the processes, kinematics, and conditions within an ice stream, greatly advancing our understanding of fast-flowing ice streams.

This paper presents a multi-year, multi-method survey of a very large surface melt feature in Northeast Greenland. The feature includes a supraglacial lake that drains into the englacial and subglacial system of the Nioghalvfjerdsfjorden glacier, adding a volume of up to 1.23 * 10^8 m3 of water to the bed of the glacier. The drainage causes uplift of the local area and likely impacts glacier dynamics by lubricating the base. Notably, the authors argue that this feature has only existed since the 1990s, when increased air temperatures led to enhanced surface melt. In this way, the glacier surface has been transformed from lake-free to undergoing frequent, abrupt drainage

This manuscript investigates the Amundsen Sea region in West Antarctica. The region has been the focus of numerous studies in recent years since the glaciers of the Amundsen Sea are a major source of uncertainty for global sea level rise projections. In this study, the authors use ice-sheet model simulations to investigate the region's response to climate change (specifically, scenarios RCP8.5 and Paris2C). Their results indicate that the region will have contributed approximately 19 mm of sea-level rise by 2100. The authors do not find any indication of rapid retreat or an unstable calving front. Although the ice shelf area significantly decreases in their model simulations, this has little effect on the ice dynamic mass loss. Thus, the manuscript results indicate that by the year 2100, the sea-level contribution from the Amundsen Sea area is almost an order of magnitude less than those estimated by previous studies.

This study demonstrates that The Jostedalsbreen ice cap, which is the largest ice cap on the European mainland (458 km2 in 2019), is now in a mode of irreversable mass loss. The ice cap may lose up to 74% of its present-day volume until 2100, depending on future greenhouse gas emissions, which will have direct consequences for human and social interests.