No energy source is perfect. That was the theme of University of Texas geologist and filmmaker Scott Tinker’s keynote speech at Summer NAPE’s Business conference held Aug. 22.

“I think we all need to recognize what’s going on with various energies, that none of them are perfect, and they’re all having their day, and in some ways, that makes very good sense,” he said.

Tinker, who produced Switch, a documentary about the future of energy on a global scale, predicted that a growing myriad of energy sources, including natural gas ...