With infrastructure, experience, and a slice of the world’s largest snow biomes, Alaska is an essential research destination for NASA’s multiyear SnowEx campaign.
The hydraulic connection between a sinkhole and a natural spring—the longest and largest yet documented—could help reduce the guesswork in mapping karst aquifers.
The climate is warming too fast for some trees to catch up. Planting seeds from warmer regions can bolster future forests, but that requires a significant shift in forestry practice.
By combining demography data with permafrost maps, researchers provide a first count of the population on permafrost and predict its imminent decline.