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

Eric Gotthelf

Columbia University

United States of America

Unnikrishnan Sureshkumar

Jagiellonian University

Poland

André Rodrigo da Silva

Nicolaus Copernicus Astronomical Center

Poland

Madhooshi Senarath

Monash University

Australia

Alberto Accomazzi

Center for Astrophysics | Harvard & Smithsonian

United States of America

Kevin Schmidt

TU Dortmund

Germany

Gonzalo Biffarella

Universidad Nacional de Córdoba

Argentina

Ulrike Kuchner

University of Nottingham

United Kingdom

Jorge Cuadra

UAI

Chile

Yordanka Apostolovski

Universidad de Valparaíso

Chile

Simon Mutch

The University of Melbourne

Australia

Pablo García

NAOC

Chile

Sara Saracino

Liverpool John Moores University

United Kingdom

Antonio Mario Magalhaes

Universidade de São Paulo

Brazil

Sunkyung Park

Konkoly Observatory

Hungary

Lancelot Kao

City College of San Francisco

United States of America

Patrick Armstrong

Australian National University

Australia

Pedro Celito Rocha

Universidade Federal do Rio de Janeiro

Brazil

Sabrina Stierwalt

Occidental College

United States of America

Enrique Vazquez-Semadeni

Instituto de Radioastronomia y Astrofisica, UNAM

Mexico

Adriana Gazol

IRyA, UNAM

Mexico

Lazrek Mohamed

Observatoire Astronomique Universitaire de l'Oukaimeden, Université Cady Ayad Mar

Morocco

Jacques Lépine

University of Sao Paulo

Brazil

Abubakr Ibrahim

Institute of Space Scince (ICE-CSIC)

Spain

Simone Mender

TU Dortmund

Germany

Filomena Volino

Uni Bonn

Italy

Dominika Król

Jagiellonian University

Poland

Maria Elidaiana da Silva Pereira

University of Michigan

Brazil

Vivian U

University of California, Irvine

United States of America

Uday Ghosh

The University of Burdwan

India

Simon O'Toole

AAO Macquarie

Australia

Zouhair Benkhaldoun

Cadi Ayyad University

Morocco

Johanna Vos

American Museum of Natural History

United States of America

Mario Tafalla

Observatorio Astronómico Nacional (IGN)

Spain

Nasser Sqalli

Association Astronomie Amareur Marrakech / Atlas Dark Sky Foundation

Morocco

Arthur Adams

University of Michigan

United States of America

Gustavo Bruzual

Instituto de Radioastronomía y Astrofísica (IRyA), UNAM, Campus Morelia

Mexico

Yan Fernandez

University of Central Florida

United States of America

Emily Deibert

University of Toronto

Canada

Daniel Mello

Observatório do Valongo / Universidade Federal do Rio de Janeiro

Brazil

Johnny Cova-Suarez

CIDA

Venezuela

Maja Vuckovic

Universidad de Valparaíso

Chile

Belinda Nicholson

University of Oxford

United Kingdom

Thiago Gomes

Universidade Federal do Rio de Janeiro - Observatório do Valongo

Brazil

Francisco Colomer

Joint Institute for VLBI ERIC

Netherlands

Catherine Grant

MIT

United States of America

Aurélien Crida

Université Côte d'Azur

France

Michael Ashley

University of New South Wales

Australia

Robert Cameron

Stanford University

United States of America

Enrique Macías

Joint ALMA Observatory/European Southern Observatory

Chile

Institutional Endorsements

institutional endorsments

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Summer Milky Way, Thoreau, NM. J. Lowenthal

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