What was climate doing back then

Assuming we can go back in time for 20-30 thousand years, we will hit quite an exciting time in the planet's history: the last ice age and climate shifts before and after that. Most importantly for understanding corals' response to global warming would be their reaction to the rise in temperature during deglaciation, 15-18 thousand years ago. Interestingly, Northern hemisphere experienced additional sudden dip in temperature (followed by another sharp rise) called the "Younger Dryas",  10-12 thousand years ago. It is not yet clear whether this event was prominent in the tropics, where corals grow - which is one additional question that our project might eventually resolve.

 Temperature and snow accumulation in Greenland, according to ice core analysis.