Forty years ago, when OPEC's Arab members cut off oil supplies to the US and parts of Europe, governments encouraged innovative solutions to reduce oil dependence. Today, as the world's ongoing oil addiction accelerates climate change, it is up to markets to lead the charge toward a more sustainable clean-energy future.

Forty years ago, when OPEC's Arab members cut off oil supplies to the US and parts of Europe, governments encouraged innovative solutions to reduce oil dependence. Today, as the world's ongoing oil addiction accelerates climate change, it is up to markets to lead the charge toward a more sustainable clean-energy future.