The shapefiles were derived from the original 1:10,000,000 paper map (Brown et al. 1997) Permafrost, or permanently frozen ground, is ground (soil, sediment, or rock) that remains at or below 0°C for ...

A century ago, you could enjoy an ice cream float at the pharmacy while you wait for your prescription to be filled. Why doesn't that exist anymore?

Photo shows An image of a worker on a walkie-talkie in foreground blurry with large ship in focus in background.