PAGES

PAGES

PAGES is an international research network focused on reconstructing past environments and climate change using proxy records from natural archives. It coordinates projects, synthesizes data and promotes collaboration among researchers across Europe, North America, Asia, Africa and Oceania. The network links paleoclimatologists, geochemists, glaciologists, dendrochronologists and modelers to inform debates at venues such as the Intergovernmental Panel on Climate Change, the United Nations Framework Convention on Climate Change and major conferences like the American Geophysical Union Fall Meeting.

Overview

PAGES specializes in multiproxy syntheses of the Quaternary and Late Pleistocene through the Holocene, integrating records from ice cores, tree rings, lake sediments, speleothems and marine deposits. It fosters collaborations between experts on the Greenland Ice Sheet, the Antarctic Ice Sheet, the Amazon Basin, the Sahara, the Himalayas, the Andes, the Mediterranean Sea, the North Atlantic Ocean and other regions. The network supports paleoclimate modeling groups that use boundary conditions informed by reconstructions of events such as the Younger Dryas, the Little Ice Age, the Medieval Climate Anomaly and large volcanic eruptions like Mount Tambora and Krakatoa. Partners often include national agencies such as the National Science Foundation (United States), the European Commission, the Swiss Academy of Sciences and institutes like the British Antarctic Survey.

History

PAGES was launched in the early 1990s under the umbrella of the International Geosphere-Biosphere Programme and later coordinated with the World Climate Research Programme and the International Union of Geodesy and Geophysics. Early initiatives synthesized proxy evidence for events documented in Greenland ice cores and Antarctic cores collected by teams involving researchers from institutions like the University of Cambridge, Columbia University and the Max Planck Institute for Meteorology. Over successive decades, PAGES convened working groups that produced major community products comparing reconstructions with output from coupled models developed at centers such as the Geophysical Fluid Dynamics Laboratory and the European Centre for Medium-Range Weather Forecasts. Key publications influenced assessment reports produced by the Intergovernmental Panel on Climate Change and scientific monographs hosted by publishers including Cambridge University Press and Nature Publishing Group.

Functions and Services

PAGES organizes thematic working groups and open calls for community projects addressing topics such as paleoclimate data harmonization, proxy-system modeling, teleconnections and regional syntheses. It maintains data standards and protocols used by repositories like the World Data Center for Paleoclimatology, the PANGAEA data library and the NOAA Paleoclimatology Program. Training and capacity-building occur via workshops, summer schools and collaborative missions with universities such as ETH Zurich, University of California, Berkeley, University of Copenhagen and Australian National University. PAGES promotes development of software tools and interoperable databases used by teams at the National Oceanic and Atmospheric Administration, the United States Geological Survey and the Chinese Academy of Sciences. It issues synthesis reports and special issues in journals such as Science, Nature, Quaternary Science Reviews and Geophysical Research Letters.

Governance and Organization

PAGES is governed by an international scientific steering committee and staffed by an international office historically hosted in cities like Bern and collaborating with national committees in countries including Germany, France, Japan, Brazil, South Africa and Canada. Membership includes individual researchers, affiliated institutions and partner programs such as the Past Global Changes (PAGES) International Project Office and regional networks like the European Geosciences Union and the American Geophysical Union. Decision-making follows community-driven processes with open proposals for working groups, endorsed by scientific steering bodies and funded through grants from agencies like the Swiss National Science Foundation, the European Research Council and national academies.

Impact and Criticism

PAGES has had substantial impact on improving understanding of past climate variability, contributing evidence used in high-profile assessments by the Intergovernmental Panel on Climate Change and informing policymakers at the United Nations and national ministries. Its coordinated syntheses have clarified the roles of forcings such as solar variability, volcanic aerosols and greenhouse gases in episodes tied to the Holocene Thermal Maximum and abrupt events like the 8.2-kiloyear event. Critics have pointed to challenges including uneven geographic coverage—sparse records in parts of Africa, Central Asia and the Southern Ocean—and debates over proxy calibration and chronological uncertainties raised by research teams at institutions like Lamont-Doherty Earth Observatory and the Swiss Federal Institute for Forest, Snow and Landscape Research. Other critiques focus on data accessibility, reproducibility, and the need for greater interdisciplinary integration with specialists from the Paleobiology and Archaeology communities; proponents respond by expanding data initiatives and outreach to funders such as the Gordon and Betty Moore Foundation and the Rockefeller Foundation.

Category:Paleoclimatology