By Taylor Kate Brown for Grist.Broadcast version by Mark Moran for Alaska News Service reporting for the Solutions Journalism Network-Public News Service Collaboration When Kira Roberts moved to Juneau, Alaska, last summer, she immediately noticed how the town of 31,000 changes when the cruise ships dock each morning. Thousands of people pour in, only to vanish by evening. As the season winds down in fall, the parade of buses driving through her neighborhood slows, and the trails near her home and the vast Mendenhall Glacier no longer teem with tourists. ...