Decades of Satellite Data Reveal Northern Hemisphere's Snow Cover Shifts

A new study analyzing satellite data from 1967 to 2021 reveals that snow cover in the northern hemisphere is declining in nearly twice as many areas as it is advancing. The data shows a receding trend in the Arctic region and southern latitudes, while some areas like Eastern Canada are experiencing increased snow cover. The study, considered the first reliable analysis of snow cover trends in the northern hemisphere, highlights the importance of understanding snow's role in the global energy balance and its impact on regional temperatures and habitats. The research will serve as a resource for the scientific community and was supported by funding from the National Science Foundation.