The National Weather Service on Thursday warned that “dangerously cold and very dry Arctic air” will spill into the continental United States and lead to “life-threatening risk of hypothermia and frostbite” as temperatures drop well into negative territory, creating some of the coldest weather on Earth.

Ukraine president says he will wait to see if Putin complies with Trump request to halt strikes on energy infrastructure

Donald Trump said Vladimir Putin had agreed not to strike Kyiv or other Ukrainian cities for a week because of exceptionally cold weather.