Taking Earth's Temperature

Delving Into Climate's Past

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"Taking Earth's Temperature: Delving Into Climate's Past," is about the work of an international team of 80 scientists studying evidence of climate change over the past 2,000 years.

The topic of climate change has sparked intense international dialogue. Though it has long been clear that our planet’s climate has changed throughout its history, causes and consequences of those changes have been less clear. We approach the science of climate change with staunch objectivity, describing the causes of climate change and how they affect natural systems using examples from new research.

The documentary features top scientists from Europe and at national research centers in the U.S. who use climate changes of the past as "natural experiments" for testing and improving the predictive power of climate models. We take viewers to remote Alaskan field sites above the Arctic Circle and to the Swiss Alps and into labs, universities, and research centers. The timing of the film’s release coincides with the publication of the results of the PAGES 2K Consortium, which will be featured by the Intergovernmental Panel on Climate Change (IPCC) in an assessment report to the United Nations. The release of this report is likely to spur a new round of intense international debate about the causes and consequences of climate change; this documentary explores concepts central to this debate.

Production Team


Dan Boone has been part of the IDEA Lab team at Northern Arizona University (NAU) for 23 years, serving as head of the imaging department for 15 of those years. Throughout his association with NAU, he has helped researchers communicate their very...

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First Assistant Director and Line Producer

Ryan Belnap has been part of the IDEA Lab team for eight years. His award-winning photographs have been exhibited nationally and internationally, and they have appeared in dozens of publications, including the book and exhibit What Has Passed...

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Lucciana Costa is a Los Angeles composer and songwriter hailing from Ann Arbor, Michigan. She has been a performing artist for more than 15 years. Costa has two studio releases (Last Chance for a Pony and Structurally Sound) and has...

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Narrator and 3-D Animations

Victor Leshyk has been translating scientific concepts into stunning visual imagery for more than 15 years, with illustrations gracing the covers of such publications as Nature, Genome Research, and Science News, as well as the...

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Peter Friederici is a freelance journalist whose work focuses on science and the environment. His articles and essays appear regularly in such periodicals as Audubon, High Country News, Orion, and InsideClimate News, and they have...

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Research Advisory Team

Lead Research Advisor

Darrell Kaufman is a paleo-climate scientist and Regents' Professor in the School of Earth Sciences and Environmental Sustainability at Northern Arizona University. He has been studying geological evidence of past climate changes at sites across Alaska and elsewhere in the western U.S. for the last 30 years. His current research focuses on natural climate variability extending back thousands of years as interpreted from the physical and biological properties of lake sediment....

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Caspar Ammann

Climatologist and Director of INSTAAR
(Institute of Arctic and Alpine Research)
University of Colorado, Boulder

David M. Anderson

Physical Scientist
NOAA’s National Climatic Data Center
Boulder, Colorado
Director World Data Center for Paleoclimatology

Jason P. Briner

Associate Professor of Geology
University at Buffalo, New York

Hubertus Fischer

PAGES co-chair
Climate and Environmental Physics
University of Bern, Switzerland

David Fortin

Paleoclimatology (post-doc)
Northern Arizona University

Martin Grosjean

Director, Oeschger Centre for Climate Change Research
Institute of Geography
University of Bern, Switzerland

Thorsten Kiefer

Executive Director, PAGES
(Past Global Changes)
Bern, Switzerland

Bette L. Otto-Bliesner

Senior Scientist
National Center for Atmospheric Research (NCAR)
Boulder, Colorado

Krystyna Saunders

Institute of Geography
University of Bern, Switzerland

Hans Petter Sejrup

University of Bergen
Department of Earth Science
Bergen, Norway

Heikki Seppa

Professor of Geology
Department of Geosciences and Geography
University of Helsinki, Finland

Thomas Stocker

Professor of Climate and Environmental Physics
Physics Institute, University of Bern, Switzerland
Co-Chair Working Group I
Intergovernmental Panel on Climate Change (IPCC)

Hanna Sundqvist

Researcher in Paleoclimatology
Stockholm University, Sweden

Eugene Wahl

NOAA’s National Climatic Data Center
Boulder, Colorado

Kristi Wallace

Research Geologist (Volcanic Ash)
U.S. Geological Survey
Alaska Volcano Observatory, Anchorage

Heinz Wanner

Professor of Climatology
University of Bern, Switzerland