Old Rocks
Diamond Member
- Thread starter
- #21
There's lots of things in this old world that are not as firm as they used to be... Just saying.
The perma frost within that study says it is 2.6 million years old, which is about the time we want below 2.5-3c warmer then today within some studies I've read and others like hansen believe it is closer to 1.5-2c.
Given the inate complexity of permafrost, either party may be correct. Still, the ice goes at least 1.5 million years, and, possibly, 2.6. Good scientific debate will be around for a while, until more definate data is collected and interpreted. What makes science fun.