The analysis suggests that efforts to prevent temperatures rising to potentially dangerous levels may have to rely heavily on “negative emissions” technology that is still in its infancy.Commenting on the study, Professor Richard Betts, head of climate impacts at the UK’s Met Office Hadley Centre, said the “important” research spelled out the “enormous challenge” ahead.Reporting at the 239th National Meeting of the American Chemical Society (ACS), they said it could allow scientific analysis of hundreds of artifacts that until now were off limits because museums and private collectors did not want the objects damaged.
All the while they have to keep their skin wet to enable oxygen absorption.
Scientists have developed a first-of-its-kind method for determining the age of ancient artifacts without causing damage to the objects.
One of the researchers, Dr Michael Obersteiner, of the International Institute for Applied Systems Analysis near Vienna, said: “The Feli X model ...
provides a unique systemic view of the whole carbon cycle, which is vital to our understanding of future climate change and energy.
Traditional carbon dating involves removing and burning small samples of the object.
Although it sometimes requires taking minute samples of an object, even that damage may be unacceptable for some artifacts.The gas slowly and gently oxidizes the surface of the object to produce carbon dioxide for C-14 analysis without damaging the surface, he said.Rowe and his colleagues used the technique to analyze the ages of about 20 different organic substances, including wood, charcoal, leather, rabbit hair, a bone with mummified flesh attached, and a 1,350-year-old Egyptian weaving.Under the Paris Agreement on climate change, the world committed to prevent global warming from going above 2C but also attempt to restrict it to as close as 1.5C as possible amid mounting evidence that dangerous effects could kick in sooner than previously thought.The new study, described in a paper in the journal , is one of the first to use the new Feli X computer model, which includes social and economic factors along with environmental ones.In conventional dating methods, scientists remove a small sample from an object, such as a cloth or bone fragment.