Nature2013-2016North Pacific Oceanhigh confidence

The Pacific 'Blob' marine heatwave persisted from late 2013 through most of 2015 and into 2016.

Notes on verification

Confirmed by multiple independent, authoritative sources including NOAA, NASA Earthdata, Oregon Encyclopedia, and a peer-reviewed study, all consistent on timeline (late 2013 to mid-2016). [tier=gold indep_score=0.983 clusters=3 claim_tier=notable]

Sources