Jennifer Francis

The polar jet stream carries weather around the Northern Hemisphere. Climate researcher Jenifer Francis believes the rapidly warming Arctic is slowing and warping the jet stream, allowing Arctic air to spill farther south in some places.

How the warming Arctic might be behind Boston’s deep freeze


There may be a counterintuitive explanation for the deep freeze that hit New England this winter: The rapidly warming Arctic is causing big disruptions in the jet stream, which carries weather across North America. Is this the worst winter you’ve experienced?

Sea ice melt

Melting Arctic sea ice doubles the chances of harsh winters in other parts of the world


Climate scientist links Arctic melting to U.S. weather fluctuations


In Sandy’s wake, Scientists Explore Links Between Warming Arctic and Extreme Weather