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

Daniel McPherson

Swinburne University of Technology

Australia

Carlos Guirao Sanchez

ESO

Germany

Sabrina De Grandi

INAF - Brera

Italy

Hugo Buddelmeijer

University of Groningen

Netherlands

Ralph Wijers

University of Amsterdam

Netherlands

Hanindyo Kuncarayakti

University of Turku

Finland

Richard Smart

INAF OATo

Italy

Elena Pancino

INAF - Osservatorio Astrofisico di Arcetri

Italy

Fiona Panther

University of Western Australia/OzGrav

Australia

Reece Nathan

Macquarie university

Australia

Hartmut Winkler

University of Johannesburg

South Africa

Magnus Näslund

Department of Astronomy, Stockholm University

Sweden

Michael Healy

Liverpool John Moores University

United Kingdom

Silvia Martínez-Núñez

Instituto de Física de Cantabria (CSIC-UC)

Spain

Nausicaa Delmotte

ESO

Germany

Luciano Nicastro

INAF-OAS

Italy

Joseph Fernández

Liverpool John Moores University

United Kingdom

Enrico Garaldi

Max-Planck-Institut fuer Astrophysik

Germany

Floor Derkink

Leiden Observatory

Netherlands

Peter Boorman

Astronomical Institute of the Czech Academy of Sciences

Czech Republic

Emiliano Merlin

INAF

Italy

Francesco Belfiore

INAF - Arcetri

Italy

Benoit Famaey

Observatoire astronomique de Strasbourg

France

Alexandre Santerne

Aix-Marseille University

France

Tricia Sullivan

Astrophysics Research Institute, Liverpool John Moores University

United Kingdom

John Forbes

Flatiron Institute

United States of America

Carsten König

MPIfR

Germany

Ruben Sanchez-Janssen

UK Astronomy Technology Centre

United Kingdom

Julia Bryant

University of Sydney

Australia

Fabrice Madec

Laboratoire d'Astrophysique de Marseille

France

Ramasamy Venugopal

IAU Office of Astronomy for Development

South Africa

Aoife Taylor

Leiden Observatory

Netherlands

Valentina D'Orazi

INAF Padova

Italy

Mark Wardle

Macquarie University

Australia

Evangelos Nagel

Hamburger Sternwarte

Germany

Metin San

University of Oslo

Norway

Lars Frogner

University of Oslo

Norway

Theodosios Chatzistergos

Max Planck institute for solar system research

Germany

Timothy Davis

Cardiff University

United Kingdom

Stein Vidar Haugan

University of Oslo, Norway

Norway

Matthieu Bethermin

LAM

France

Samuel Boissier

Laboratoire d'Astrophysique de Marseille

France

Krisztián Vida

Konkoly Observatory

Hungary

Johannes Buchner

MPE

Germany

Pierre-Alain Duc

Observatoire astronomique de Strasbourg

France

Julien Milli

IPAG

France

Garrelt Mellema

Stockholm University

Sweden

Prasanta Char

University of Liège

Belgium

Emilio Romano-Diaz

Argelander Institute for Astronomy, University of Bonn

Germany

Martijn Wilhelm

Leiden Observatory

Netherlands

Institutional Endorsements

institutional endorsments

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Summer Milky Way, Thoreau, NM. J. Lowenthal

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