Resting on a solitary slab of ice floating in the Arctic Ocean, a majestic creature sparkles in the polar summer sunshine.

Melting sea ice in the Arctic is opening up lanes in the ocean for the global trade route -- lanes that were previously blocked. In the near future, the melting will have a big impacts on major ...

New research shows that climate systems like sea ice and permafrost may shift abruptly, even at 1.5°C (2.7°F) of warming.

For decades, scientists believed the Arctic Ocean was sealed under a massive slab of ice during the coldest ice ages — but new research proves otherwise. Sediment samples from the seafloor ...