Home›Categories›Open QuestionsCategoriesOpen QuestionsCitation FormatsGeneral ReferenceGeneral Reference Citation TextEarth and Environment Atlas. "Open Questions." Accessed August 30, 2026. https://dev-earth.interactiveatlas.org/categories/open-questions-index.Copy General ReferenceAPA StyleAPA Style Citation TextEarth and Environment Atlas. (n.d.). Open Questions. Retrieved August 30, 2026, from https://dev-earth.interactiveatlas.org/categories/open-questions-indexCopy APA StyleBibTeXBibTeX Citation Text@misc{earthandenvironmentatlas-open-questions, author = {Earth and Environment Atlas}, title = {Open Questions}, year = {2026}, url = {https://dev-earth.interactiveatlas.org/categories/open-questions-index}, note = {Accessed August 30, 2026} }Copy BibTeXReference and ClassificationDevelopingCross-Tradition ConnectionsComments (0)Reader Challenges (0 open reader challenges)Cross-Tradition ConnectionsContainsDo Deep Mantle Plumes Explain Hotspot Volcanism, or Is the Plate Hypothesis Right?, Open Questions Well-attested Do deep mantle plumes feed volcanic hotspots such as Hawaii, or do shallower plate processes explain them?, Open Questions Well-attested Is the Atlantic Meridional Overturning Circulation Approaching a Tipping Point?, Open Questions Well-attested Should the Anthropocene Be Formally Ratified as a Geological Epoch?, Open Questions Well-attested Was Snowball Earth a full snowball or a slushball with an open equatorial band?, Open Questions Well-attested What 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 Questions Well-attested When and how did plate tectonics itself begin on early Earth?, Open Questions Well-attested When Did Environmental Health Emerge as a Distinct Field?, Open Questions Well-attested Why Does the 100,000-Year Ice Age Cycle Dominate When Its Orbital Forcing Is Weak?, Open Questions Well-attested Comments (0)No comments yet. Be the first to share a thought.Sign in to join the discussion.Reader Challenges (0 open reader challenges)No disputes yet. Spotted an error or a better source? Open the first one.Sign in to dispute this or suggest a correction.View At A Past YearThe atlas records no dated fact of its own for this entry, so there is no other year to choose.Show This Year