[jmpe]

Yes, you're missing an important detail about the lifecycle of arctic ice.

Multi-year ice is about 6 years old. There's no 100 year old ice there. Every year it gets slushed, reaches a minimum around September and builds up again. The minima are dropping, btw. Both in extent as in volume.

[refurb]

There is no 100 year old ice out there"

Where are we getting the air samples to determine what CO2 levels from? I thought it was from bubbles trapped in ice that is 100+ years old.

[jimworm]

The Antarctic, Greenland, other glaciers.

[001sky]

Great point. Glaciers on land are diffrent. There are also some ancient/long-lived ice formations in the south pole (also land/locked). I believe these are more like frozen freshwater lakes than glaciers (mobile, compacted snow etc).

[jmpe]

You misquoted me, please re-read it.