Earth and Environment Atlas

How The Planet Works
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Open Questions

Honest open questions the atlas records rather than resolves: a claim genuinely disputed among sources, a fact still unsettled, or an observation without an agreed explanation. Recording the disagreement here is preferred to picking a side the sources themselves have not settled, so a reader sees the live state of the debate rather than a false certainty. This category gathers every open question the atlas has raised, each one tied back to the entity or claim it questions rather than standing alone.

Open Questions

Can the exact timing of a volcanic eruption be reliably predicted in advance?

Open Questions
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Do Deep Mantle Plumes Explain Hotspot Volcanism, or Is the Plate Hypothesis Right?

Open Questions
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Do deep mantle plumes feed volcanic hotspots such as Hawaii, or do shallower plate processes explain them?

Open Questions
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Does mantle convection operate as a single whole-mantle system, or as two separate layers above and below the mantle transition zone, and do deep, geochemically distinct reservoirs survive within it?

Open Questions
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How long does it take karst topography to form under a given set of rock and climate conditions?

Open Questions
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How long does karstification take to shape a landscape?

Open Questions
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How much will land and ocean carbon sinks weaken as the planet keeps warming?

Open Questions
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Is the Atlantic Meridional Overturning Circulation Approaching a Tipping Point?

Open Questions
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Should the Anthropocene Be Formally Ratified as a Geological Epoch?

Open Questions
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Was Snowball Earth a full snowball or a slushball with an open equatorial band?

Open Questions
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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
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When and how did plate tectonics itself begin on early Earth?

Open Questions
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When Did Environmental Health Emerge as a Distinct Field?

Open Questions
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Why Does the 100,000-Year Ice Age Cycle Dominate When Its Orbital Forcing Is Weak?

Open Questions
1 link
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