ScienceDaily (Dec. 13, 2007) — Two researchers here spent months scouring through old expedition logs and reports, and reviewing 70-year-old maps and photos before making a surprising discovery: They found that the effects of the current warming and melting of Greenland’s glaciers that has alarmed the world’s climate scientists occurred in the decades following an abrupt warming in the 1920s.
Good news right? They discovered that climate is cyclical in Greenland. A quick stop at GISS would have given them all the information they needed.
Wrong. They found a way to toss logic into the AGW bottomless pit.
The fact that recent changes to Greenland’s ice sheet mirror its behavior nearly 70 years ago is increasing researchers’ confidence and alarm as to what the future holds. Recent warming around the frozen island actually lags behind the global average warming pattern by about 1-2 degrees C but if it fell into synch with global temperatures in a few years, the massive ice sheet might pass its “threshold of viability” – a tipping point where the loss of ice couldn’t be stopped.
“Once you pass that threshold,” Box said, “the current science suggests that it would become an irreversible process. And we simply don’t know how fast that might happen, how fast the ice might disappear.”