Evidence of algae growth and climate simulations reveal the Arctic had seasonal ice, not a permanent ice shelf, for much of ...

Arctic melting foreshadows America's climate future 45:20. The Arctic could be "ice-free" in just a few years, scientists have found. Here's what that means.

Arctic sea ice ranges widely in color, texture, shape, and behavior. This is from the start of the ice zone, where it tends to be thinner, with patches of open water.

Melting sea ice alters color of Arctic and Antarctic oceans. Without an ice layer on the ocean's surface, ... Arctic sea ice measured only 4.3 million square kilometers (km 2), ...

When ice melts, the darker ocean water absorbs more heat, accelerating warming in the Arctic and beyond. It’s like replacing a mirror with a blackboard; the latter absorbs much more light and heat.

In the Arctic Ocean, some ice stays frozen year-round, lasting for many years before melting. But this winter, the region hit a record low for ice older than five years. This, along with a near ...