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

Ciro Del Vecchio

National Institute for Astrophysics

Italy

Verena Wolf

Thuringian State Observatory

Germany

Andreja Gomboc

University of Nova Gorica

Slovenia

Anke Arentsen

Observatoire astronomique de Strasbourg

France

Fred Dulwich

University of Cambridge

United Kingdom

John Paice

University of Southampton

United Kingdom

Emeline Bolmont

University of Geneva

Switzerland

Michele Trabucchi

University of Geneva

Switzerland

Mercedes Mollá

CIEMAT

Spain

Roberta Spartà

Infn

Italy

Pranjal Trivedi

University of Hamburg

Germany

Régis Terrier

APC (CNRS/Université de Paris)

France

Stefano Ettori

INAF OAS Bologna

Italy

Isabel Neilson

Monash University

Australia

Ivan Delvecchio

INAF-OAB

Italy

Robert Cumming

Chalmers University of Technology, Sweden

Sweden

Labani Mallick

Indian Institute of Astrophysics

India

Martin Steinke

University of Cologne

Germany

Tamara Davis

University of Queensland

Australia

Josef Sebera

Astr. inst., Czech Academy of Sciences

Czech Republic

David Wöckel

TLS Tautenburg

Germany

James Matthews

University of Cambridge

United Kingdom

Tomás Müller

University of Southampton

United Kingdom

Lavanya Nemani

INAF

India

Saverio Lombardi

INAF (Italian National Institute for Astrophysics)

Italy

Michelle Collins

University of Surrey

United Kingdom

Valentina Giordano

INAF

Italy

Friedrich Anders

University of Barcelona

Spain

Surdej Jean

Liège University

Belgium

Roxanne Ligi

OCA

France

Marco Castellani

INAF - Rome Astronomical Observatory

Italy

Ivanna Langan

Centre de Recherche Astrophysique de Lyon (CRAL)

France

Dilpreet Kaur

San Francisco State University

United States of America

Jean-René Cudell

Université de Liège

Belgium

Fatemeh Jessen-Hansen

DTU Space

Denmark

Paletou Frédéric

Université de Toulouse, Observatoire Midi-Pyrénées, Irap

France

Ugo Lebreuilly

CEA Saclay

France

Landman Bester

South African Radio Astronomy Observatory

South Africa

Francesco Schillirò

Istituto Nazionale Astrofisica

Italy

Raffaele Gratton

INAF - Osservatorio Astronomico di Padova

Italy

Pierre Vermot

Czech Academy of Sciences

Czech Republic

Angela Bragaglia

INAF-OAS Bologna

Italy

Francesco Calura

INAF-OAS, Bologna

Italy

Claes Fransson

Stockholm University, Dept. of Astronomy,

Sweden

Poojan Agrawal

Swinburne University of Technology

Australia

Laetitia Delrez

University of Liege

Belgium

Vivek Venkatraman Krishnan

Max Planck Institute for Radio Astronomy

Germany

Pooneh Nazari

Leiden University

Netherlands

Enrico Corsaro

INAF - Osservatorio Astrofisico di Catania

Italy

Luca Izzo

University of Copenhagen

Denmark

Institutional Endorsements

institutional endorsments

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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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