] It shows eight ice ages, or glacials, followed by shorter ] interglacial periods and changing concentrations of gases ] and particles in the atmosphere. ] ] The period that corresponds most to the present ] interglacial period, which started 12,000 years ago, was ] about 400,000 years ago and lasted roughly 28,000 years. ...? So which group of scientists missed the memo? Barring humans, 15,000 years warm weather |