Nearly one quarter of the land in the Northern Hemisphere, amounting to some 9 million square miles, is layered with permafrost — soil, sediment, and rocks that are frozen solid for years at a time.
articles
Seasonal Water Resource on the Upper Indus
Seasonally occurring fields of aufeis (icing) constitute an important resource for the water supply of the local population in the Upper Indus Basin.
Global Glacier Retreat Has Accelerated
Glaciers are a sensitive indicator of climate change – and one that can be easily observed.
Great Lakes Fish are Benefiting from Restored Rapids Habitat, Study Finds
More juvenile fish have been using the rapids restored by NOAA and partners on the St. Marys River, according to a recent study.
People of Color Hardest Hit by Air Pollution From Nearly All Sources
A study finds that nearly all major emissions categories contribute to the systemic air pollution exposure disparity experienced by people of color.
Uncertainty of Future Southern Ocean CO2 Uptake Cut in Half
The Southern Ocean dominates the oceanic uptake of human-made CO2. But how much carbon dioxide can it actually absorb in the future?


