As Thomas Stocker of the University of Bern, the co-chair of the scientists behind the report, put it at the press launch: "Human influence on the climate is clear," and "climate change is the greatest challenge of our time.
also talked about scientific interest in what lay behind what he
termed the "hiatus" in warming.
"We looked at this very carefully," said Stocker
There was, he
noted, "not a lot of published literature" on the phenomenon.