Nature2014-2016North Pacific / California coasthigh confidence

The Pacific 'Blob' coincided with unexpected die-offs of California sea lions, Guadalupe fur seals, common murres, and Cassin's auklets.

Notes on verification

Confirmed by multiple independent sources including NOAA surveys, a peer-reviewed study, and news outlets, all corroborating the specific species die-offs coinciding with the 'Blob' marine heatwave. [tier=gold indep_score=0.925 clusters=4 claim_tier=notable]

Sources