Have three climate change scientists been ASSASSINATED? The astonishing claim made by a Cambridge professor A Cambridge professor has claimed that three scientists investigating climate change in the Arctic may have been assassinated. Professor Peter Wadhams insists Seymour Laxon, Katharine Giles and Tim Boyd could have been murdered by someone possibly working for the oil industry or within government forces. The trio had been studying the polar ice caps - with a focus on sea ice - when they died within a few months of each other in 2013.