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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

Jacob White

National Radio Astronomy Observatory

United States of America

Michelle Willebrands

Leiden Observatory

Netherlands

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

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

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

Additional Siguatures

Pasquier Noterdaeme

Institut d'Astrophysique de Paris

France

Gareth Jones

University of Warwick

United Kingdom

Florian Seitz

Haus der Astronomie Heidelberg

Germany

Fabien Louvet

CEA

France

Anaëlle Maury

CEA/DAp/AIM

France

Martin Giard

IRAP - CNRS

France

Guillaume Blanc

Laboratoire de Physique des deux infinis Irène Joliot Curie

France

Alejandra Fresco

Max Planck Institute for Extraterrestrial Physics

Paraguay

Francois Kapp

SARAO

South Africa

Reinhold Schaaf

Argelander-Institut für Astronomie, Universität Bonn

Germany

C.Clare Worley

University of Cambridge

United Kingdom

Calvin Preston

Institute of Astronomy, Cambridge

United Kingdom

Sandra Wiersma

IRAP, UPS, Toulouse

France

Dora Klindzic

Leiden Observatory

Netherlands

Thomas Wijnen

Leiden Observatory

Netherlands

David Aguilera-Dena

Institute of Astrophysics - FORTH

Greece

Vanessa McBride

Office of Astronomy for Development

South Africa

Kacem EL HADI

Aix-Marseille Université

France

Filippo Mannucci

INAF - Arcetri

Italy

Vincent Le Brun

Laboratoire d'Astrophysique de Marseille

France

Yanbin YANG

Paris Observatory

China

Thierry Stolarczyk

CEA Paris-Saclay, Univ. Paris-Saclay, Univ. Paris

France

Lluis Marti Magro

Autonoma de Madrid

Spain

Caroline Roberts

University of Iowa

United States of America

Takuma Izumi

NAOJ

Japan

Alec Thomson

CSIRO

Australia

Ole König

FAU

Germany

Emily Kerrison

University of Sydney/CSIRO

Australia

Le Bertre Thibaut

CNRS

France

Dana Ficut-Vicas

Astronomical Observatory Cluj-Napoca (Romanian Academy of Science)

Romania

Martin Moyano

Universidad Nacional de Cordoba

Argentina

Paul Lasky

Monash University

Australia

Mary Kontizas

National and Kapodistrian University of Athens

Greece

Andrew Cole

University of Tasmania

Australia

Ozan Lacinbala

ISMO, Université Paris-Saclay

France

Christine Wilson

McMaster University

Canada

Adam Isaacson

South African Radio Astronomy Observatory

South Africa

Jielai Zhang

Swinburne University of Technology

Australia

Valentine Wakelam

CNRS - univ of Bordeaux

France

Caro Derkenne

Macquarie University

Australia

Diana Besliu-Ionescu

Astronomical Institute of the Romanian Academy

Romania

Ankur Sharma

Uppsala University

Sweden

Douglas Arion

Mountains of Stars

United States of America

Guillaume Laibe

Ens de Lyon

France

Mónica Alejandra Oddone

Observatorio Astronómico Córdoba -Universidad Nacional de Córdoba

Argentina

Fiona Prodöhl

Hamburg Observatory

Germany

Antoniya Valcheva

Sofia university "St. Kliment Ohridski"

Bulgaria

Michael Brown

Monash University

Australia

Antonio Hales Gebrim

ALMA

Chile

Iaroslav Iakubivskyi

Tartu Observatory

Estonia

Institutional Endorsements

institutional endorsments

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