An earlier version of this piece was published in the Houston Chronicle.

Picture a day when the world’s most-watched video features a C-level oil executive on a TED stage with his family, saying, “For years, my kids have told me the work I do threatens their futures. I didn’t pay much attention. Now I realize they’re right. I see the long-term danger in overloading our air with carbon dioxide. Most of our underground reserves can’t ever be used. I want to stay at my company and help find a way out.”

How might that moment arrive?