Climate Central meteorologist Bernadette Woods Placky explains why cold snaps like the polar vortex happen in a warming world.
Climate Central's Senior Science Writer Andrew Freedman explains weather whiplash and what is has to do the the Polar Vortex.
Senior science writer Andrew Freedman talks to Judy Woodruff of PBS NewsHour about the science behind the polar vortex.
This year's Atlantic hurricane season is expected to be busier than usual and the 2011 summer forecast calls for some extreme weather. Heidi Cullen makes the climate connection.