The debate around the Arctic is becoming hotter than ever as US President Donald Trump insists Greenland should become part of the United States. Security, shipping routes and mineral wealth are all in the mix.

Forecasters are warning of a sprawling winter storm that's predicted to spread a mess of ice and snow over a 2,000 mile stretch of the nation.

Since Russia full-scale invasion of Ukraine almost four years ago, Europe's attention has been firmly fixed on NATO's eastern flank. But could the Arctic become the next area requiring defence and does Bundeswehr have the capacity to take on that role?

U.S. President Donald Trump wants to buy Greenland as he says it is the only way for the United States to secure its defence. Denmark and Greenland, an autonomous territory, refuse and say any concerns Washington has can be addressed via their existing defence agreement.

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 rains.

Grynkewich said NATO's military headquarters has "a ton of expertise" that could be used to organize an Arctic mission.

Major cities across the Northeast and Midwest are facing temperatures 10-20 degrees below average, according to forecasters.

COPENHAGEN, Jan 22 (Reuters) - Danish Prime Minister Mette Frederiksen said on Thursday that Denmark and Greenland will continue to engage in a constructive dialogue on security in the Arctic, provided that this is done with respect for her country's territorial integrity.

Confidence is increasing that an arctic cold front could bring Texas its coldest temperatures of the winter, as well as possible ice and snow.

Biological matter in river runoff increasing the chances of cloud formation in the Arctic Circle is an important discovery for improving climate modelling in the North Pole.