[Sequoyah101]

It was two degrees warmer then. That should have helped some. I’m surprised we are here at all since 2 degrees is an existential crisis.

[gleeaikin]

There were many fewer millions of people sitting in major
cities at sea level in those days. Many fewer trillions of dollars invested in major infrastructure there, much shorter life spans for the majority. A lot easier to move upward a few feet in a lifetime.