A renowned glaciologist named Claude Lorius has passed away at the age of 91. His excursions helped demonstrate that people are to blame for global warming.
In his lifetime, he served as the leader of 22 missions to Greenland and Antarctica.
He first established that humans are responsible for the Earth’s surface warming during a 1965 trip to Antarctica after spending the evening drinking whisky over ice.
On Tuesday morning, Lorius passed away in Burgundy, France.
His passion for exploration led him down the path of spotting and foreseeing a planetary disaster.
In 1956, just out of university, he joined an expedition to Antarctica. Temperatures there were as low as -40C (-40F).
Despite this, Lorius and two other people lived there for two years, surviving with limited supplies and a faulty radio.
The more polar expeditions he led to the continent, the more he became fascinated with Antarctica’s mysteries.
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In 1965, Lorius had a revelation by gathering ice samples and dropping them in whiskey. He spoke about it half a century later.
“One evening, after deep drilling, in our caravan we drank a glass of whiskey in which we had put ice cubes of old ice,” he said.
“Seeing the bubbles of air sparkling in our glasses, I came to the idea that they were samples of the atmosphere trapped in the ice.”
Realizing the scientific potential of analyzing trapped air, he then decided to study ice cores – samples drilled out of the ice which acts as frozen time capsules.
By drilling into the ice, Lorius drilled into the past, penetrating, in his words, the “ice of the first Ice Age”.
His research into air bubbles trapped in the ice was published in 1987.
It showed that while carbon dioxide had varied slightly after the Industrial Revolution concentrations of the greenhouse gas had rocketed as temperatures rose.
Lorius’s research brought him international renown and allowed scientists to look back over 160,000 years’ worth of glacial records.
The French National Centre for Scientific Research (CNRS) said it left “no room for doubt” that global warming was due to man-made pollution.
From then on he became a campaigner and in 1988 he was the inaugural expert of the United Nations Intergovernmental Panel on Climate Change.
In 2002, he was awarded the CNRS gold medal along with his colleague Jean Jouzel.
Lorius was also the first Frenchmen to receive the prestigious Blue Planet Prize.
Story adapted from BBC
