Looking for a climate change cite.

[Quartz]

Pursuing my interest in climate change, I came across this article

@WECN article

We recall the two-year-old report saying a mature forest and agricultural water-management structures had been discovered emerging from the ice, seeing sunlight for the first time in thousands of years. Bryson interrupts excitedly.

“A silver mine! The guys had stacked up their tools because they were going to be back the next spring to mine more silver, only the snow never went,” he says. “There used to be less ice than now. It’s just getting back to normal

What report was this? In other words, I’m looking for the cites to back this up. Just before this he makes another claim and backs it up:

@WECN article

We ask about that evidence, but Bryson says it’s second-tier stuff. “Don’t talk about proxies,” he says. “We have written evidence, eyeball evidence. When Eric the Red went to Greenland, how did he get there? It’s all written down.”

Bryson describes the navigational instructions provided for Norse mariners making their way from Europe to their settlements in Greenland. The place was named for a reason: The Norse farmed there from the 10th century to the 13th, a somewhat longer period than the United States has existed. But around 1200 the mariners’ instructions changed in a big way. Ice became a major navigational reference. Today, old Viking farmsteads are covered by glaciers.

So he can do it.

Please note that I am not interested in debating the issue. I’m just looking to verify the claims.