The oldest and thickest sea ice in the Arctic has started to break up, opening waters north of Greenland that are normally frozen, even in summer. This phenomenon – which has never been recorded before – has occurred twice this year due to warm winds and a climate-change driven heatwave in the northern hemisphere.
A massive floating nuclear power plant is now making its way toward its final destination at an Arctic port, after Russia's state nuclear corporation Rosatom launched the controversial craft over the weekend. It's the first nuclear power plant of its kind, Russian officials say.
Our growing demand for resources has prompted companies to turn to mining in the depths of the oceans. With help from robots, a team of German scientists is racing to map the potential environmental damage.
The U.S. and its NATO allies have warned that an uptick in Russian submarine activity near undersea fiber optic cables means Moscow may be plotting to disrupt or intercept sensitive or other critical internet communications in the event of a confrontation with the West.
Climate change could lead to sea level rises that are larger, and happen more rapidly, than previously thought, according to a trio of new studies that reflect mounting concerns about the stability of polar ice.