When three of four sections of the Nord Stream pipeline blew up on Sept. 26, 2022, speculations went wild as to who was behind the act of sabotage.

The explosion resulted in the largest release of natural gas in history, equal to Denmark’s carbon dioxide annual output, and rattled the European energy sector. Among the main suspects were Russia, blamed by Ukraine and several Western figures, alleging a false flag; the United States, blamed by Russia; and Ukraine, blamed by some analysts.