Rising Arctic temperatures and melting sea ice could be causing cold air to flow into the Northern Hemisphere. But not all ...

An unusually brutal winter storm is set to pummel more than 160 million Americans from Friday, as a stretched "polar vortex" sends a devastating blast of Arctic air, bringing heavy snows and freezing ...

Organic matter carried in rivers to the Russian part of the Arctic Ocean may be creating more clouds and keeping the region ...

The frigid temperatures, massive snow and deadly ice storm taking shape east of the Rockies might seem to conflict with life on a rapidly warming planet. But all of these things still happen, even ...

The North Pole is surrounded by a massive circular upper-air weather phenomenon in the Arctic called the polar vortex. It is ...

Meteorologists warn that a stretched polar vortex could bring severe winter weather to much of the United States.

As Trump points to Russia and China near Greenland, experts say the biggest Russian and Chinese activity is elsewhere in the Arctic.

CLIMATE change is no longer a distant threat but a daily reality for smallholder farmers who face erratic rainfall, prolonged droughts, floods, and rising temperatures. At the same time, markets are ...

Polar bears are leaping through their evolution in real time as rising temperatures threaten their habitat. A population of bears was found in a climate warmer than one in which they usually exist, ...

Arctic marine life is notoriously difficult to study because of its remoteness. But drones have enabled whales to be monitored and diagnosed while being minimally invasive, according to a new study.