Climate activism is no longer a young person’s game

Olivia Rudgard | (TNS) Bloomberg News

When Cathy Fulkerson walked into her bank in Reno, Nevada, she was ready to cancel her credit card. Carrying a letter stating her concerns, Fulkerson explained to the manager why she wanted to cut ties: its investments in fossil fuels.

“The manager was very nervous and very confrontational, and I was a customer. I was shocked,” Fulkerson says — though she was also quite thrilled. “It was obviously very uncomfortable for him and obviously made...