In an article due to be published in Nature this week, Dr. Bjorn Svendsen from the University of Copenhagen and his team analysed tiny air bubbles trapped in the higher layers of the 2500 metres deep ice.
“We were surprised to see such high values,” said Dr. Svendsen by satellite telephone from Greenland. “We had heard about the wild parties of that era, but we did not know they were THAT wild. Some of us were young in the 1960s, but as they say, if you can remember the 1960s you were not really taking part.”“We see how certain events increased atmospheric values,” said Dr. Svendsen, “like The Summer of Love and the Woodstock Festival. Even individual concerts by The Beatles and The Rolling Stones are indicated as spikes in the curve.”
“There is some crazy stuff going on here,” said Dr. Svendsen. “Looking at what those people were smoking, you have to wonder how they survived. Come to think of it, many of them didn’t survive. Well, now we know why.”
In his next project, Dr. Svendsen and his team will examine ice cores from the 1970s to study how high people were in the disco period.