They also use crampons, ice screws and carabiners. The conditions have to be just right: When it’s too warm, the ice grows soft and can separate from the rock wall; when it’s too cold, the ice becomes ...

A “beautiful, thriving ecosystem” has emerged from the shadows after an iceberg the size of Chicago splintered off Antarctica ...

By determining which ice sheets melted to create a colossal increase in sea levels 14,500 years ago, scientists hope to enable better predictions of how current ice melting will affect levels around ...