Home›A-Z IndexIndexA-Z Index of All Entries397 entries across the whole atlas. Pick a letter below to see its entries.0-9ABCDEFGHIJKLMNOPQRSTUVWYW16 entriesW. Jason Morgan ScientistsW. Jason Morgan (Wikipedia) SourcesWas Snowball Earth a full snowball or a slushball with an open equatorial band? Open QuestionsWater Cycle (Wikipedia) SourcesWeathering ProcessesWeathering (Wikipedia) SourcesWhat caused the mid-Pleistocene transition, when glacial cycles shifted from a roughly 41,000 year rhythm to the roughly 100,000 year rhythm still running today? Open QuestionsWhen and how did plate tectonics itself begin on early Earth? Open QuestionsWhen Did Environmental Health Emerge as a Distinct Field? Open QuestionsWhy Does the 100,000-Year Ice Age Cycle Dominate When Its Orbital Forcing Is Weak? Open QuestionsWilliam Smith ScientistsWilliam Smith, Geologist (Wikipedia) SourcesWilson Cycle (Wikipedia) SourcesWladimir Koppen ScientistsWladimir Koppen (Wikipedia) SourcesWorks In Relation Types