International Polar Year

A recurring, internationally coordinated burst of polar research: four editions — 1882–83, 1932–33, 1957–58 (renamed the International Geophysical Year), and 2007–08 — with a fifth planned for 2032–33 as a "crucial new phase in a 150-year-old process."

Researched by Muhammad Abdullah Al Yasin · 2 October 2026

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Established: 1882
Country: International
Nature: A recurring series of intensive, internationally coordinated research campaigns focused on Earth's polar regions
Editions: 1882–1883; 1932–1933; 1957–1958 (renamed the International Geophysical Year); 2007–2008 (run March 2007–March 2009)
Origin: Proposed by Austrian explorer and naval officer Lt. Karl Weyprecht; an international meteorological congress in Vienna in 1873 set the first year in motion
Core idea: Geophysical phenomena cannot be surveyed by one nation alone, but require a coordinated international effort
Fourth IPY scale: About 50,000 researchers, local observers, educators, students, and support personnel from more than 60 nations across 228 international projects
Fourth IPY organizers: The International Council for Science (ICSU, now the International Science Council) and the World Meteorological Organization (WMO)
Signature legacy: Set the precedent for international scientific cooperation; the 1957–58 cooperation provided the roadmap for the 1959 Antarctic Treaty
Fifth IPY: In preparatory planning for 2032–33 by the International Arctic Science Committee (IASC) and the Scientific Committee on Antarctic Research (SCAR)

Overview

The International Polar Year is not a closed chapter of science history — it is an open one. Twenty-five years after the fourth edition ran in 2007–2008, the International Arctic Science Committee and the Scientific Committee on Antarctic Research confirmed that preparatory work has started for a fifth International Polar Year in 2032–33, describing it as a “crucial new phase in a 150-year-old process.” Researcher Paul Arthur Berkman, writing in Cambridge Prisms: Coastal Futures, has called IPY-5 potentially the most consequential iteration yet — a piece of science-diplomacy machinery aimed at an Arctic that is both rapidly warming and geopolitically contested (phys.org).

The series behind that announcement began in 1882–1883, when an international meteorological congress in Vienna in 1873 — inspired by the Austrian explorer and naval officer Lt. Karl Weyprecht — launched the first coordinated international study of the polar regions. The premise has never changed: geophysical phenomena cannot be surveyed by one nation alone, but require a coordinated international effort. The second IPY followed in 1932–1933, the third in 1957–1958 (renamed the International Geophysical Year), and the fourth in March 2007–March 2009 (Hydro International).

Four editions, one idea

The first IPY’s most important product was not a measurement but a precedent: the setting of international scientific cooperation as a working method (Hydro International). That precedent kept paying off. The third IPY — the 1957–58 International Geophysical Year — initiated the satellite era and “awakened” Earth system science, and its lessons in international cooperation provided the roadmap for the 1959 Antarctic Treaty, which Berkman describes as the first nuclear arms agreement (phys.org).

The fourth IPY was the largest coordinated research program ever run in Earth’s polar regions. Organized by the International Council for Science and the World Meteorological Organization, with SCAR and IASC coordinating the Antarctic and Arctic efforts, it ran two full annual cycles from March 2007 to March 2009 so that both poles would be covered. An estimated 50,000 researchers, local observers, educators, students, and support personnel from more than 60 nations took part in 228 international projects — 170 in science, 1 in data management, and 57 in education and outreach (International Science Council).

The fourth year broke with its predecessors in two ways. It spanned an unusually wide disciplinary range — geophysics, ecology, human health, the social sciences, and the humanities — and every project included partners from several nations and/or from indigenous communities and polar residents’ organizations. Education, outreach, public communication of results, and training the next generation of polar researchers were made primary missions, broadening participation “to an extent never realized or even envisioned in the earlier IPYs” (International Science Council). The program produced a ‘pulse’ of new funding for polar research and monitoring, new observational and analysis technologies, integrated system-level approaches, and organizational paradigms that were expected to leave a lasting legacy of their own (International Science Council).

The first edition, and a Svalbard connection

The 1882–83 edition reached as far as Spitsbergen. Sweden’s contribution to the first IPY was a research station at Kapp Thordsen — the Swedish House, or Svenskhuset, rebuilt and expanded under the mechanical engineer Salomon August Andrée for a six-scientist expedition led by meteorologist Nils Gustav Ekholm, with hourly observations made through the polar winter. Eight countries established fourteen research stations for that first polar year, twelve of them in the Arctic. The Kapp Thordsen data later fed into the Norwegian Kristian Birkeland’s research into the causes of the northern lights around 1900. (For the full account of the station and its earlier, darker history, see this site’s profile of the Svenskhuset tragedy.)

What IPY-5 is planned to be

The 2032–33 edition is being designed as more than a repeat. The IASC–SCAR initiative aims to build a year that reflects the needs not only of the international research community but also of Indigenous Peoples and other residents of the polar regions and wider stakeholders, with backing from the World Meteorological Organization, the International Science Council, the University of the Arctic, the International Arctic Social Sciences Association, the Association of Polar Early Career Scientists, and other partners (IASC). A joint SCAR-IASC Polar Conference is planned for 2030 as a lead-up milestone (IASC). Berkman frames the stakes explicitly: “Science diplomats can broker dialogues among allies and adversaries alike simply by introducing questions,” and he asks whether IPY-5 will “awaken the first International Century among its legacies” — science diplomacy turned into research-for-action across generations (phys.org).

What this profile does not claim

This profile does not claim to describe the scientific content of the second IPY (1932–33) — only its dates are stated here, because the sources read in full did not cover it in detail. It does not claim the fifth IPY is formally launched or funded; the IASC/SCAR statement confirms only that preparatory work has started. It does not date the IPY-5 joint statement precisely, since the statement carries no on-page date (see openItems). It does not present the “first nuclear arms agreement” characterization of the 1959 Antarctic Treaty or the “crucial new phase” framing as established fact — both are Paul Arthur Berkman’s reported framing, not an independently verified consensus. It does not claim the fourth IPY ended scientific work in the polar regions; many of its activities continued beyond March 2009 (International Science Council).

Timeline

1873: An international meteorological congress in Vienna, inspired by Lt. Karl Weyprecht, results in the first International Polar Year being proposed and organized for 1882–1883.
1882: The first International Polar Year runs through 1883; Sweden establishes a research station at Kapp Thordsen on Spitsbergen, the Swedish House (Svenskhuset) expedition led by Nils Gustav Ekholm.
1932: The second International Polar Year runs through 1933.
1957: The third IPY, renamed the International Geophysical Year, runs through 1958, initiating the satellite era and Earth system science; its cooperation lessons provide the roadmap for the 1959 Antarctic Treaty.
2007: The fourth IPY begins in March 2007 and runs through March 2009 — two full annual cycles to cover both poles — with 228 international projects and participants from more than 60 nations.
2023: IASC and SCAR confirm that preparatory work has started for a fifth International Polar Year in 2032–33, and announce a joint SCAR-IASC Polar Conference for 2030.
2030: The joint SCAR-IASC Polar Conference is planned as a lead-up milestone for the fifth IPY.

What we could not verify

These claims came up in research and could not be confirmed. They are recorded here rather than published as fact or quietly dropped. If you hold a source that settles one, please tell us.

The IASC/SCAR joint statement on IPY-5 carries no on-page publication date; the timeline uses 2023 as an approximation based on the statement's internal reference to sharing next steps "from 2023 onward."
The content of the second IPY (1932–33) beyond its dates — e.g., its focus areas and the claim that the Depression limited its results — appears only in sources not read in full here, so the body states only the dates.
The characterization of the 1959 Antarctic Treaty as "the first nuclear arms agreement" and the "crucial new phase in a 150-year-old process" framing are Paul Arthur Berkman's, as reported by phys.org; the underlying paper was not read in full.
Whether IPY-5 planning has produced updates between the joint statement and 2026 was not established.

Sources

4 sources (1 tier 1, 2 tier 2, 1 first-party), each opened and read against the claim it supports. Statements the subject makes about itself are marked as such and are not treated as independent evidence. See the source policy.

Four pages were read in full. The IASC joint statement (first-party) verified the fifth IPY plans. The International Science Council's IPY project page verified the 2007-2009 scale, organization, and impact. The 2007 Hydro International editorial by Leeke van der Poel verified the origins (Weyprecht, 1873 Vienna congress) and the series' structure and core idea. The phys.org article (summarizing Paul Arthur Berkman's 2025 paper in Cambridge Prisms Coastal Futures, DOI 10.1017/cft.2025.2) verified the science-diplomacy framing of IPY-5 and the IGY-to-Antarctic-Treaty account. The 1882-83 Swedish station details rest on this site's own Svenskhuset tragedy profile, which cites the Svalbard Museum.

International Polar Year: 2007-2009 Tier 1
International Science Council Supports: The 2007–2009 IPY's organization (ICSU and WMO; SCAR and IASC coordinating), the two full annual cycles March 2007–March 2009, the ~50,000 personnel from 60+ nations, the 228 international projects (170 science, 1 data management, 57 education and outreach), the disciplinary range, the indigenous-community partnership requirement, the education/outreach and next-generation-training mission, and the 'pulse' of funding, technologies, and organizational paradigms. Open original source
Editorial (April 2007) on the International Polar Year Tier 2
Hydro International, by Leeke van der Poel, 2007-04-04 Supports: The first IPY's origin (Karl Weyprecht, 1873 Vienna meteorological congress), the core idea that geophysical phenomena require coordinated international effort, the precedent of international scientific cooperation as the principal legacy, and the series dates (1882–83, 1932–33, 1957–58, March 2007–March 2009). Open original source
Landmark polar sciences experiment announced for next decade Tier 2
phys.org (summarizing Cambridge Prisms - Coastal Futures), 2025-02-25 Supports: The framing of IPY-5 as potentially the most consequential iteration, the "crucial new phase in a 150-year-old process" description, the IGY's role in initiating the satellite era and Earth system science, and the account of IGY cooperation providing the roadmap for the 1959 Antarctic Treaty. Open original source
Joint statement from IASC and SCAR - Planning for the 5th International Polar Year (IPY) 2032-33 First-party
International Arctic Science Committee Supports: All claims about the fifth IPY - preparatory work for 2032-33, the 25-year interval since 2007-08, supporting partners (WMO, ISC, University of the Arctic, IASSA, APECS), Indigenous and resident participation, and the 2030 joint SCAR-IASC Polar Conference. Open original source

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