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

John Black

Chalmers University of Technology

Sweden

Andrés Asensio Ramos

Instituto de Astrofisica de Canarias

Spain

Anne-Lise Maire

University of Liège

Belgium

Elizabeth Post

Mount Holyoke College

United States of America

Elisa Rita Garro

Universidad Andrés Bello

Chile

Johannes Puschnig

University of Bonn, AIfA

Germany

Roberto Trotta

Imperial College London and SISSA

United Kingdom

Devesh Nandal

University of Leeds

Switzerland

Dalal El Youssoufi

Leibniz-Institut für Astrophysik Potsdam (AIP)

Germany

Andri Spilker

Chalmers University of Technology

Sweden

João Alves

University of Vienna

Austria

Stefano Giovanardi

Planetarium and Astronomical Museum of Rome

Italy

Beatrice Bucciarelli

Istituto Nazionale di Astrofisica, Osservatorio Astrofisico di Torino

Italy

Javier Gracia Carpio

Max Planck Institute for extraterrestrial Physics

Germany

Tetyana Pitik

Niels Bohr Institute

Denmark

Martin Blažek

Astronomical Institute of the Czech Academy of Sciences

Czech Republic

Salvatore De Gaetano

INFN Bari

Italy

Florian Eppel

University of Würzburg

Germany

Manal Yassine

IRAP

France

Bartholdi Paul

University of Geneva

Switzerland

Ruben Fedriani

Chalmers University of Technology

Sweden

Carina Persson

Chalmers University of Technology

Sweden

Eleonora Zari

Max Planck Institute for Astronomy

Germany

Markus Pössel

Haus der Astronomie

Germany

Lola Balaguer-Nuñez

ICCUB-IEEC

Spain

David Gwynn

Dash Astro

United Kingdom

Martina Baratella

Università degli studi di Padova

Italy

Ilídio André Costa

Santa Bárbara School / Porto Planetarium - Ciência Viva Center / Institute of Astrophysics and Space Sciences

Portugal

Betelehem Bilata

Ethiopian Space Science and Technology Institute

Ethiopia

Volodymyr Savchenko

University of Geneva

Switzerland

Wendy Williams

Leiden Observatory

Netherlands

Kieran Leschinski

University of Vienna

Austria

Bachar Wehbe

Institute of Astrophysics and Space Sciences

Portugal

Ronald Holzlöhner

European Southern Observatory (ESO)

Germany

José Silva

Institute of Astrophysics and Space Sciences

Portugal

Sara Elisa Motta

INAF

Italy

Juan Manuel Alcala

INAF - Osservatorio Astronomico di Capodimonte

Italy

simone lotti

INAF

Italy

Sylvie Cabrit

Observatoire de Paris

France

Emmanuel Lellouch

Observatoire de Paris

France

Cressida Cleland

University of Birmingham

United Kingdom

Eskil Varenius

Onsala Space Observatory

Sweden

Mathilde Espinasse

Université de Paris / CEA Saclay

France

Patricia Whitelock

SAAO & UCT

South Africa

Andrea Hidalgo Valadez

University of Oxford

United Kingdom

Orlin Koop

University of Groningen Kapteyn Institute

Netherlands

Domenico Bonaccini Calia

European Southern Observatory

Germany

Matt Nicholl

University of Birmingham

United Kingdom

Marc Horat

Verkehrshaus der Schweiz

Switzerland

Paul Woods

Nature Astronomy

United Kingdom

Institutional Endorsements

institutional endorsments

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Summer Milky Way, Thoreau, NM. J. Lowenthal

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