The finger-pointing began immediately: It was the frozen wind turbines that foolishly replaced traditional sources. No, fossil fuels were at fault. No, Texas¡¯ deregulated power market, unique in the country, had allowed companies to skimp on maintenance and upgrades.

As the hours ticked by and millions more were plunged into frozen darkness, a more sober reality emerged. The greatest forced blackout in U.S. history, as this event has almost certainly become, was the result of a systemic and multifaceted failure. There are no promises of when power will be restored and little likelihood that the episode won¡¯t be repeated in a corner of the country hard hit by climate change.

¡°This feels like a technical design failure,¡± said Michael Webber, who founded the Webber Energy Group at the University of Texas at Austin and serves as chief science and technology officer at French utility Engie.