If you’re reading this on the web or someone forwarded this e-mail newsletter to you, you can sign up for Globe Climate and all Globe newsletters here. Good afternoon, and welcome to Globe ...

The easy answer is a deep southward dip in the polar jet stream that typically rings the globe at higher latitudes ... other and how they react to the climate change that's warming the Arctic ...

A strong, stable vortex is like a skater spinning with their arms tucked closely in, holding in an area of cold air over the Arctic. But when there’s a wobble in the rotation, winds in the vortex can ...