Welcome to Week 2 of GGWash Junctions! All the cool kids are playing it! What is GGWash Junctions and how do you play?

Two million years ago, on the fringe of some of the northernmost land on Earth just 500 miles from the North Pole, the landscape couldn’t have looked more different from today’s polar desert.

Customers are hearing the phrase in coffee shops, credit unions and clinics, and they aren’t sure why. The WSJ investigates.