[masklinn]

Things grew during "ice ages". Just not in the glacier-covered north.

The ice stopped well short of the southern border of california: https://upload.wikimedia.org/wikipedia/commons/2/26/Iceage_n...

Furthermore the LGM event started around 33000 BCE, reached its peak around 25000 BCE, and the deglaciation started around 19000 BCE with a significant acceleration around 15000 BCE.

[moloch-hai]

The Amazon was never iced over at all. Some people say it was savanna much of the time.

All of lowland Mexico and central America were ice-free throughout.

[AlotOfReading]

Mexico isn't ice-free today, let alone during the last glacial maximum. Costa Rica used to have glaciers during the LGM that have since disappeared.

[moloch-hai]

Even tropical mountaintops have ice, news at 11.

People mostly don't try to live on mountaintops, icy or not.

[AlotOfReading]

I wasn't the one insisting that Mexico and Central America were ice-free. The glaciation blocked off many high-altitude passes like the paso de cortes. Most of the taller ranges along the American cordillera had some level of glacial activity during the LGM and that meaningfully impacted regional climates throughout the Americas.

[maxbond]

To be fair, I think that meant it was free of ice sheets, and were mostly countering the misconception that the LGM was like a snowball Earth.

[kuhewa]

A good reference point is Los Angeles would have had a NorCal climate during the glacial.