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

Maud Galametz

CEA Paris-Saclay

France

Melissa Pesce Rollins

INFN

Italy

Jennifer Scott

Towson University

United States of America

Lydia Markopoulioti

University of Crete

Greece

Olívia Rodrigues

Agrupamento de escolas à Beira Douro

Portugal

Carolina Rodrigues

Agrupamento de escolas à Beira Douro

Portugal

Demetra De Cicco

Pontificia Universidad Católica de Chile

Chile

Maryam Saberi

University of Oslo

Norway

Sarah Anderson

Université de Bourgogne Franche Comté

France

Javier Sánchez Sierras

Instituto de Astrofísica de Canarias

Spain

Victoria Antoci

DTU Space, Technical University of Denmark

Denmark

Tombo Fitahiana Rarivoarinoro

University of Antananarivo

Madagascar

Katja Poppenhaeger

Leibniz Institute for Astrophysics Potsdam

Germany

Kamen Kozarev

Institute of Astronomy, Bulgarian Academy of Sciences

Bulgaria

Shanika Galaudage

Monash University

Australia

Ilya Mandel

Monash University

Australia

Elise Egron

INAF-Observatory of Cagliari

Italy

Bernd Schleicher

Universität Würzburg

Germany

Ashley Chrimes

Radboud University

Netherlands

Hannah Zohren

Argelander Institute for Astronomy

Germany

Mariia Bilinska

Jagiellonian University

Poland

Nikolaus Sulzenauer

Max Planck Institute for Radio Astronomy

Germany

Danny Steeghs

University of Warwick

United Kingdom

Konstantinos Kouroumpatzakis

Institute of Astrophysics/FORTH

Greece

Damien Ragavan

Ukzn

South Africa

Ivana Bešlić

Argelander institut for Astronomy, University of Bonn

Germany

Sandra Patricia Treviño Morales

Chalmers University of Technology

Sweden

Roland Timothé

Observatoire de Besançon

France

Maria Tantalo

Università di Roma Tor Vergata - Dipartimento di fisica

Italy

Nair Trógolo

Observatorio Astronómico de Córdoba

Argentina

Julia OConnell

Texas Christian University

United States of America

Lorenzo V. Mugnai

"Sapienza" University of Rome

Italy

Yordan Darakchiev

Sofia University St. Kliment Ohridski

Bulgaria

Jaswanth Subramanyam

Max Planck Institute for Radio Astronomy

Germany

Katia Gkimisi

University of Crete

Greece

Anchal Gers

Fergusson College Pune

India

Anna Konstantinou

Institute of Astrophysics -FORTH

Greece

Julien Montillaud

Université de Franche-Comté / UTINAM

France

Alan Roy

Max Planck Institute for Radio Astronomy

Germany

Tshiamiso Makwela

University of Cape Town

South Africa

Tania Johnston

ESO

Germany

Kelebogile Bonokwane

UCT, SAAO

South Africa

Chiara Mazzucchelli

European Southern Astronomy (ESO Chile)

Chile

Carolina Casadio

Institute of Astrophysics - FORTH

Greece

Helene Sol

CNRS, Observatoire de Paris

France

Lisa Lehmann

Institut de Recherche en Astrophysique et Planétologie

France

Helen Jermak

Liverpool John Moores University

United Kingdom

DAVID YOUNG

Queen's University Belfast

United Kingdom

Federica Guidi

Instituto de Astrofísica de Canarias

Spain

Maret Einasto

Tartu Observatory

Estonia

Institutional Endorsements

institutional endorsments

Join Us

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

Support Us

Help us to address climate change
from an astronomical perspective.