California’s salmon fishery reopens this spring after three years of devastating closures — and the forecast is the strongest in years. But the comeback story isn’t about wet winters or dam removals. It’s about what happened on April 11, 2023, when Kamchatka’s Shiveluch volcano blasted iron-rich ash across the North Pacific, replenishing vital dust to the ocean pastures where salmon put on 95 percent of their body weight. From Alaska’s 119 million pink salmon to California’s record jack returns, the 2023 ocean-entry cohorts are coming home strong everywhere. The volcano told us what the medicine is. The question is whether we’ll act before the next silent years return.
The 2013 Alaska salmon boom wasn’t a mystery—it was a message. When ocean pastures are restored, they unleash vast phytoplankton blooms that capture hundreds of millions of tonnes of CO₂, drive deep ocean sequestration, and even cool the planet through clouds and albedo. The salmon are not the product—they are the proof.
What is needed now is the sustained commitment to answer — not when a volcano happens to erupt, not when an Asian dust storm happens to cross the Pacific at the right moment in the right season — but deliberately, continuously, season after season, until the rivers from the Klamath to the Kenai run dark with life again.
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