A polar vortex dipping down from Siberia is bringing a cold front with frigid temperatures to millions Americans. See maps of ...

and Siberia. 20 of the most vulnerable hot spots were home to permafrost, which is rapidly thawing around the Arctic, with others being boreal forests. Map of areas that experienced ecosystem ...

According to the new map, the magnetic North Pole has shifted from northern Canada toward Siberia over the past five years. It also indicates that the locations of blackout areas, where compasses ...