President Donald Trump has said the United States "needs" Greenland for national security purposes and has indicated he is ...

See our Citation Policies for more details about how to structure your data citation. The Circum-Arctic permafrost and ground ice map is available via ftp in ESRI Shapefile format and Equal-Area ...

Groundwater plays an important role in sustaining aquatic and terrestrial ecosystems, such as springs, wetlands, rivers and vegetation. Understanding these groundwater-dependent ecosystems (GDEs) is ...

If Portland is anything, Portland is coffee country. It’s one of the crown jewels of a region venerated for its cafes and coffee culture, one of the guiding lights of American coffee innovation. The ...

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