Glacial cirques are distinctive amphitheatre‐shaped depressions formed by the persistent erosive action of mountain glaciers. These landforms typically exhibit steep, often overhanging headwalls, ...

THE long summer was over. For ages a tropical climate had prevailed over a great part of the earth, and animals whose home is now beneath the Equator roamed over the world from the far South to the ...

Earth's valleys tell an ancient story of ice and power. Over millions of years, massive glaciers have carved, sculpted, and transformed the landscape in ways that still take researchers' breath away.

Boston, Mass. – Glacial deposits that formed on tropical land areas during snowball Earth episodes around 600 million years ago, lead to questions about how the glaciers that left the deposits were ...

A new study analyzing a lake formed by a glacier surge in the Karakoram Mountains has revealed how satellite images can be used to monitor the potential for lake drainage hazards. New research has ...

20,000 years ago, during the last glacial maximum, hulking formations of flowing ice stretched across the Southern Rocky Mountains in present-day Colorado. Most of those glaciers melted away by around ...

Sign up for the Concord Monitor’s morning newsletter for essential news each day, and our contests and promotions list for special offers and giveaways. Recent ...