Ms. Sims, 54, may be the most surprising legal figure to emerge as the world grapples with the devastating impacts of a warming planet. An Armani-and-Rolex wearing observant Catholic from a small Midwest town who talks to God as she mulls her complex legal cases,

Ms. Sims is also a constant TikTok poster whose dog has more followers than some celebrities.

“I believe the Holy Spirit is my co-counsel,” she said. “He’s never steered me wrong.”

Missy Sims