As the world’s largest investor-owned oil company, Exxon is among the top contributors to global planet-heating greenhouse gas emissions. But in an interview, published on Tuesday, Woods argued that big oil is not primarily responsible for the climate crisis.

The real issue, Woods said, is that the clean-energy transition may prove too expensive for consumers’ liking.

“The dirty secret nobody talks about is how much all this is going to cost and who’s willing to pay for it,” he told Fortune last week. “The people who are generating those emissions need to be aware of and pay the price for generating those emissions. That is ultimately how you solve the problem.”