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Introducing Landsat Ice Stream (73°36′S, 79°03′W)
Seven ice features in western Antarctica have been named for Earth-observation satellites.
Carbon Dioxide Reaches Record Levels, Plus 6 Things to Know About the Greenhouse Gas
In May 2019, when atmospheric carbon dioxide reached its yearly peak, it set a record.
A Bit Less of Excelsior Glacier in Photographs
In a recent article, we showed satellite imagery of the dramatic retreat of Alaska’s Excelsior Glacier over the past two decades. Images collected closer to the ground also show dramatic change.
Spreading Grasslands — Not Homo erectus — Wiped Out Africa’s Big Animals
Seven million years ago, some truly spectacular creatures roamed the woodlands of East Africa.


