++CLIENTS PLEASE NOTE: THIS VIDEO HAS BEEN LOOPED++ Footage of a bubble turning into an icy sphere as temperatures drop to -35C in Canada.<br /><br />In the video, filmed in Regina, Saskatchewan, on December 28, a bubble appears to freeze into a solid sphere.<br /><br />Writes the filmer: "Frigid air does not mean you have to stay in. Bundle up, get out and create something amazing!"<br /><br />Temperatures across Canada and northern US have plunged since Christmas. <br /><br />Weather reports say this is due to a lobe of the polar vortex dipping far south over North America.
