Open Letter

To Astronomy Departments, Institutions and Societies:
Adopt Sustanability as a Primary Goal.

We, astronomers, astrophysicists,
and global citizens…

  1. Recognize the urgency of the climate crisis and our impact on it.
  2. We also recognize that we have the power to change our current practices.
  3. We call on astronomical institutions worldwide to set an example for the field in mitigating our contribution to the climate crisis by:
  • Naming sustainability as a primary goal.
  • Putting in place specific sustainable practices to lower carbon emissions.
  • Clearly communicating these changes both to their own members and the general public.

Translations available in English, Dutch, Italian, German, Portuguese, Spanish, and Turkish.

PDF of Open Letter     
Press Inquires: Contact
PDF of Press Release
Link to Press Kit Media

More than 2859 astronomers from 81 countries

recognize that there is no Planet B!

Scroll down to see a full list of signees and institutional endorsements.

signatures per country map

Open Letter Team Signatures

Michelle Willebrands

Leiden Observatory

Netherlands

Jacob White

National Radio Astronomy Observatory

United States of America

Volker Ossenkopf-Okada

Universität zu Köln

Germany

Manisha Shrestha

Liverpool John Moores University

United Kingdom

Adam Stevens

International Centre for Radio Astronomy Research / The University of Western Australia

Australia

Gabriele Betancourt-Martinez

Institut de Recherche en Astrophysique et Planétologie

France

Abigail Frost

KU Leuven

Belgium

Tobias Beuchert

European Southern Observatory

Germany

Benjamin Gompertz

University of Birmingham

United Kingdom

Abhijeet Borkar

Astronomický Ústav AV ČR

Czech Republic

Victoria Grinberg

Eberhard Karls Universität Tübingen

Germany

Toby Brown

National Research Council

Canada

Violette Impellizzeri

Leiden Observatory

Netherlands

Leo Burtscher

Leiden Observatory

Netherlands

Knud Jahnke

Max Planck Institute for Astronomy

Germany

Faustine Cantalloube

Laboratoire d'Astrophysique de Marseille

France

Gina Maffey

The Wildeor Foundation

Netherlands

Adrienne Cool

San Francisco State University

United States of America

Wendy Crumrine

University of Southern California

United States of America

Hannah Dalgleish

University of Namibia

United Kingdom

Sarah Deveny

Texas Tech University

United States of America

Debra Fischer

Yale University

United States of America

Additional Siguatures

Vivienne Wild

University of St Andrews

United Kingdom

Lauren Aldoroty

Texas A&M University

United States of America

Paola Andreani

ESO

Germany

Fabien Malbet

University Grenoble Alpes / CNRS / IPAG

France

Adele Plunkett

NRAO

United States of America

James Lowenthal

Smith College

United States of America

Evert Nasedkin

Max Planck Institute for Astronomy

Canada

Rose Waugh

University of St Andrews

United Kingdom

Travis Rector

University of Alaska Anchorage

United States of America

Ken Brandt

Usc Beaufort

United States of America

Breezy Ocana Flaquer

San Digo State University

United States of America

Sarah White

SARAO / Rhodes University

South Africa

Parit Mehta

Universität zu Köln

Germany

George Privon

National Radio Astronomy Observatory

United States of America

Emma Puranen

University of St Andrews

United Kingdom

Emma Mannfors

University of Helsinki

Finland

Katharina Immer

University of Leiden

Netherlands

Karen Masters

Haverford College

United States of America

Francesca Pinna

MPIA

Germany

Julie Bolduc-Duval

Discover the Universe

Canada

Shashwata Ganguly

University of Cologne

Germany

Sriram Sankar

South African Astronomical Observatory

South Africa

Sylvia Ekström

University of Geneva

Switzerland

Didier Queloz

University of Cambridge

United Kingdom

Abdulkadir Nuhu

Desert sky Exploration

Nigeria

James Miley

Joint ALMA Observatory / NAOJ

Chile

Annika Kreikenbohm

University of Würzburg

Germany

Michel Mayor

University of Geneva

Switzerland

Christoph Wendel

Julius-Maximilians-Universität Würzburg

Germany

Institutional Endorsements

institutional endorsments

Join Us

A4E invites scientists, astronomy educators, amateurs and students to join in the effort to combat the climate crisis from an astronomical perspective.
Summer Milky Way, Thoreau, NM. J. Lowenthal

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from an astronomical perspective.