These mineral "icicles" hanging from the subway ceiling form like stalactites in caves and may contain clues to the city's ...

Permafrost usually hits the news as a hazard; a planetary risk. When this ice-rich ground thaws, it damages roads and building foundations. It drains lakes and tips trees into drunken forests. It ...

The Paris Climate Accords in 2015 set an ambitious (and necessary) goal of keeping global temperatures at 1.5 degrees Celsius ...

Bromeliads are one of the great evolutionary success stories of the neotropics, the tropical ecosystems of the Americas. The ...

A new study suggests brightening Pacific clouds with sea salt could weaken powerful El Niño events before they reach full ...