Older Dryas

The late-glacial (subsequent to the LGM) records from Iceland indicate that relatively warm Atlantic water reached Iceland during the Bølling – Allerød Interstadial, with a short cooling period corresponding with the Older Dryas.

Arctic climate variability prior to 100 years BP 2009

We'd have to find some other comet impact events to explain the Oldest Dryas and the Older Dryas periods as well - in addition to the few thousand other rapid temperature change events in the ice core data.

RealClimate 2009

We'd have to find some other comet impact events to explain the Oldest Dryas and the Older Dryas periods as well - in addition to the few thousand other rapid temperature change events in the ice core data.

RealClimate 2009