The Hockey Stick Lives: Canadian Arctic Warming Unprecedented in 120,000 Years

A new study led by UC Boulder Institute of Arctic and Alpine Research Associate Director Gifford Miller takes things way, way back:

Average summer temperatures in the Eastern Canadian Arctic during the last 100 years are higher now than during any century in the past 44,000 years….

Since radiocarbon dating is only accurate to about 50,000 years and because Earth’s geological record shows it was in a glaciation stage prior to that time, the indications are that Canadian Arctic temperatures today have not been matched or exceeded for roughly 120,000 years, Miller said.

“The key piece here is just how unprecedented the warming of Arctic Canada is,” said Miller…. “This study really says the warming we are seeing is outside any kind of known natural variability, and it has to be due to increased greenhouse gases in the atmosphere.”

The Hockey Stick Lives:  Canadian Arctic Warming Unprecedented in 120,000 Years