Climate deniers are quick to say ‘I told you so’ when the mercury drops. But a warmer planet impacts weather in ways that can seem counterintuitive. Record cold temperatures are once again expected to ...

You've likely heard the term "polar vortex" virtually every winter since it first entered into popular culture during a bitterly cold January a decade ago. The polar vortex is a whirling cone of low ...

January usually brings the coldest air of the season to much of the country, and this year has seen its fair share. “The polar vortex is a core of extremely cold air that typically remains near the ...

Stephen has degrees in science (Physics major) and arts (English Literature and the History and Philosophy of Science), as well as a Graduate Diploma in Science Communication. Stephen has degrees in ...

In recent weeks, social media has been buzzing with talk of the polar vortex arriving later this month, along with another phrase that has entered the public lexicon: sudden stratospheric warming. But ...

Chicagoans are no strangers to cold weather, but some of the terminology used to describe frigid conditions can be confusing. That’s why experts from the National Weather Service’s Chicago office — ...

After last month’s polar vortex collapse, a second one is expected to unleash freezing conditions across North America. With the winter weather phenomenon predictions eyeing a mid-March comeback, ...