Open Questions

Open Antarctica

Why It Is Open Seven countries, Argentina, Australia, Chile, France, New Zealand, Norway and the United Kingdom, have made territorial claims covering parts of Antarctica, and three of those claims, Argentina's, Chile's and the United Kingdom's, physically overlap the same sector. The 1959 Antarctic Treaty neither recognizes nor cancels any of these claims; it bars any new claim and bars any existing claim from being enlarged while the treaty is in force, leaving the underlying ownership question frozen rather than settled.

What Would Settle It Either a new treaty replacing the current freeze with a settled territorial arrangement, or a claimant state formally renouncing its claim, would resolve which of the overlapping claims, if any, holds.

Expertise Needed International law

Question posed in Territorial claims in Antarctica (Wikipedia), Overlapping claims section, the Argentina-Chile-UK triple overlap and the treaty's no-new-claim rule.

Open North America

Why It Is Open The conventional political boundary runs through the Darien Gap on the Panama-Colombia border, which places almost all of Panama within North America. Some geologists instead draw the physiographic line farther north, at the Isthmus of Tehuantepec in Mexico, treating the rest of Central America as a transitional zone rather than as part of North America proper. The two conventions, political and physiographic, answer different questions and disagree by roughly two thousand kilometers.

What Would Settle It A single agreed convention for whether the continental boundary follows political borders or physiographic features would settle which line applies; no new fact discovery is expected to close this on its own, since both conventions already agree on the underlying geography.

Expertise Needed Physical geography

Question posed in North America (Wikipedia), Extent and definition section, the Darien Gap versus the Isthmus of Tehuantepec.

Open Continents

Why It Is Open The physical landmasses are not in dispute, but where the lines are drawn between them is a matter of convention that differs by educational tradition rather than by geology. The seven-continent model this atlas uses (treating Europe, Asia, North America and South America as four separate continents) is standard in the United States, the United Kingdom, China and India. A six-continent model combining Europe and Asia into Eurasia is standard in Russia and much of eastern Europe. A different six-continent model combining North and South America into a single American continent is standard in much of Latin America and Spain. A five-continent model, familiar from the five rings of the Olympic flag, combines the Americas into one and excludes Antarctica as uninhabited. No geological survey settles which grouping is correct, because the disagreement is about classification, not about where any coastline actually lies.

What Would Settle It Nothing within geography itself; the count is a pedagogical and cultural convention rather than an empirical question, so no future survey or measurement resolves it. What would change the entry is a documented shift in which convention is most widely taught, which is a question for comparative education research rather than earth science.

Expertise Needed Comparative education and the history of geography teaching, not earth science.

Question posed in United States Geological Survey.

Open Permafrost and Periglacial Processes

Why It Is Open Permafrost holds an estimated 1,400 to 1,650 billion tons of organic carbon. Even under a high-warming scenario, only an estimated 5 to 15 percent of it is expected to be lost over decades and centuries through gradual thaw, but abrupt thaw processes (thermokarst collapse, thaw slumps) release proportionally more methane, accounting for an estimated 40 to 70 percent of the total warming impact from permafrost carbon, and abrupt thaw remains far harder to model and quantify than gradual thaw. Vegetation regrowth is very unlikely to offset the emissions either way. The range between the gradual-thaw and abrupt-thaw estimates is wide enough that the century-scale climate impact is not yet pinned down.

What Would Settle It Long-term field monitoring of abrupt-thaw sites across the permafrost zone, paired with permafrost carbon models that fully incorporate abrupt thaw rather than gradual thaw alone.

Expertise Needed Climatology and Earth system science

Question posed in Permafrost (Wikipedia), Climate change and carbon feedback section.

Open Sanjay Gandhi National Park

Why It Is Open Published histories disagree and none read was the Maharashtra Forest Department notification. Krishnagiri National Park is dated 1942 (Bombay National Park Act) by Mumbai Tourism and IndiaGeographies, 1950 by WorldAtlas, 1969 or 1974 for the Borivali name or expansion, 1976 by WorldAtlas, 1981 for the renaming after Sanjay Gandhi by most sources, and 1996 by WorldAtlas and Mumbai Tourism for the same renaming, with IndiaGeographies giving national park status as 1983.

What Would Settle It The Maharashtra Forest Department or Government of India notification text or the park official history page, stating which year each step (Krishnagiri National Park, Borivali National Park, Sanjay Gandhi National Park) took effect, so the page can state one establishment year and the recorded fact can match it.

Question posed in Sanjay Gandhi National Park (Wikipedia), History section; compared with Mumbai Tourism, WorldAtlas, IndiaGeographies and Explore Maharashtra pages read 2026-10-11.