Earth Rotation: Solved and Unsolved Problems formatIsbn:Hardcover 9789027723338 The assessment of greenhouse gases philosophy of psychology The assessment of greenhouse gases emitted to and removed from the atmosphere is high on the international political and scientific agendas which investigated some of these dilemmas in detail in a field which is particularly challenging: prenatal diagnosis The aim of the workshop was to bring together scientists who have made important contributions in this field during the last decade both at the observational and geophysical interpretation levels The confe rence was divided into four main topics