In the 1950s, a Soviet engineer proposed damming the Bering Strait
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- Soviet engineer Petr Mikhailovich Borisov proposed damming the Bering Strait to pump cold Arctic water into the Pacific, aiming to melt Arctic ice and warm Siberia's climate.
- The plan, developed in the 1950s during the Cold War, reflected an era of confidence in technology's ability to solve problems, but faced criticism from scientists who warned of complex ecological consequences.
- Today, similar geoengineering ideas are studied as theoretical climate interventions to stabilize ocean currents, but are not seen as alternatives to reducing emissions.