The eruption may have caused this 1,000-year period of cooler temperatures (stadial), two centuries of which could be accounted for by the persistence of the Toba stratospheric loading.
Letusan ini bisa jadi menghasilkan periode suhu dingin selama 1.000 tahun tersebut (stadial); dua abad di antaranya disebabkan oleh bertahannya muatan stratosfer Toba.