Agence France-Presse: A mathematical formula developed by US researchers could help scientists predict when and where icebergs will break away from their mother ice shelfs, according to a study published Friday. The development could also prove invaluable for climate models that predict the world’s evolving environment, said researchers at the University of Pennsylvania. “To predict the future of the ice sheet and to understand the past, we have to put the information into a computer,” said Richard …